git.sur5r.net Git - openldap/blob - servers/slapd/syncrepl.c

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         ber_int_t       si_msgid;
 100         Avlnode                 *si_presentlist;
 101         LDAP                    *si_ld;
 102         Connection              *si_conn;
 103         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 104         ldap_pvt_thread_mutex_t si_mutex;
 105 } syncinfo_t;
 106
 107 static int syncuuid_cmp( const void *, const void * );
 108 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 109 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 110 static int syncrepl_message_to_op(
 111                                         syncinfo_t *, Operation *, LDAPMessage * );
 112 static int syncrepl_message_to_entry(
 113                                         syncinfo_t *, Operation *, LDAPMessage *,
 114                                         Modifications **, Entry **, int );
 115 static int syncrepl_entry(
 116                                         syncinfo_t *, Operation*, Entry*,
 117                                         Modifications**,int, struct berval*,
 118                                         struct berval *cookieCSN );
 119 static int syncrepl_updateCookie(
 120                                         syncinfo_t *, Operation *, struct berval *,
 121                                         struct sync_cookie * );
 122 static struct berval * slap_uuidstr_from_normalized(
 123                                         struct berval *, struct berval *, void * );
 124
 125 /* callback functions */
 126 static int dn_callback( Operation *, SlapReply * );
 127 static int nonpresent_callback( Operation *, SlapReply * );
 128 static int null_callback( Operation *, SlapReply * );
 129
 130 static AttributeDescription *sync_descs[4];
 131
 132 static const char *
 133 syncrepl_state2str( int state )
 134 {
 135         switch ( state ) {
 136         case LDAP_SYNC_PRESENT:
 137                 return "PRESENT";
 138
 139         case LDAP_SYNC_ADD:
 140                 return "ADD";
 141
 142         case LDAP_SYNC_MODIFY:
 143                 return "MODIFY";
 144
 145         case LDAP_SYNC_DELETE:
 146                 return "DELETE";
 147         }
 148
 149         return "UNKNOWN";
 150 }
 151
 152 static void
 153 init_syncrepl(syncinfo_t *si)
 154 {
 155         int i, j, k, l, n;
 156         char **attrs, **exattrs;
 157
 158         if ( !sync_descs[0] ) {
 159                 sync_descs[0] = slap_schema.si_ad_objectClass;
 160                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 161                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 162                 sync_descs[3] = NULL;
 163         }
 164
 165         if ( si->si_allattrs && si->si_allopattrs )
 166                 attrs = NULL;
 167         else
 168                 attrs = anlist2attrs( si->si_anlist );
 169
 170         if ( attrs ) {
 171                 if ( si->si_allattrs ) {
 172                         i = 0;
 173                         while ( attrs[i] ) {
 174                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 175                                         for ( j = i; attrs[j] != NULL; j++ ) {
 176                                                 if ( j == i )
 177                                                         ch_free( attrs[i] );
 178                                                 attrs[j] = attrs[j+1];
 179                                         }
 180                                 } else {
 181                                         i++;
 182                                 }
 183                         }
 184                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 185                         attrs[i] = ch_strdup("*");
 186                         attrs[i + 1] = NULL;
 187
 188                 } else if ( si->si_allopattrs ) {
 189                         i = 0;
 190                         while ( attrs[i] ) {
 191                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 192                                         for ( j = i; attrs[j] != NULL; j++ ) {
 193                                                 if ( j == i )
 194                                                         ch_free( attrs[i] );
 195                                                 attrs[j] = attrs[j+1];
 196                                         }
 197                                 } else {
 198                                         i++;
 199                                 }
 200                         }
 201                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 202                         attrs[i] = ch_strdup("+");
 203                         attrs[i + 1] = NULL;
 204                 }
 205
 206                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 207                         j = 0;
 208                         while ( attrs[j] ) {
 209                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 210                                         for ( k = j; attrs[k] != NULL; k++ ) {
 211                                                 if ( k == j )
 212                                                         ch_free( attrs[k] );
 213                                                 attrs[k] = attrs[k+1];
 214                                         }
 215                                 } else {
 216                                         j++;
 217                                 }
 218                         }
 219                 }
 220
 221                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 222
 223                 if ( si->si_allopattrs ) {
 224                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 225                 } else {
 226                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 227                 }
 228
 229                 /* Add Attributes */
 230                 if ( si->si_allopattrs ) {
 231                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 232                 } else {
 233                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 234                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 235                         }
 236                 }
 237                 attrs[ n ] = NULL;
 238
 239         } else {
 240
 241                 i = 0;
 242                 if ( si->si_allattrs == si->si_allopattrs ) {
 243                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 244                         attrs[i++] = ch_strdup( "*" );
 245                         attrs[i++] = ch_strdup( "+" );
 246                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 247                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 248                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 249                         attrs[i++] = ch_strdup( "*" );
 250                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 251                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 252                         }
 253                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 254                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 255                         attrs[i++] = ch_strdup( "+" );
 256                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 257                 }
 258                 attrs[i] = NULL;
 259         }
 260
 261         si->si_attrs = attrs;
 262
 263         exattrs = anlist2attrs( si->si_exanlist );
 264
 265         if ( exattrs ) {
 266                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 267
 268                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 269                         j = 0;
 270                         while ( exattrs[j] != NULL ) {
 271                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 272                                         ch_free( exattrs[j] );
 273                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 274                                                 exattrs[k] = exattrs[k+1];
 275                                         }
 276                                 } else {
 277                                         j++;
 278                                 }
 279                         }
 280                 }
 281
 282                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 283                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 284                                 ObjectClass     *oc;
 285                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 286                                         k = 0;
 287                                         while ( oc->soc_required[k] ) {
 288                                                 if ( !strcmp( exattrs[i],
 289                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 290                                                         ch_free( exattrs[i] );
 291                                                         for ( l = i; exattrs[l]; l++ ) {
 292                                                                 exattrs[l] = exattrs[l+1];
 293                                                         }
 294                                                 } else {
 295                                                         k++;
 296                                                 }
 297                                         }
 298                                 }
 299                         }
 300                 }
 301
 302                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 303
 304                 if ( i != n )
 305                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 306         }
 307
 308         si->si_exattrs = exattrs;
 309 }
 310
 311 typedef struct logschema {
 312         struct berval ls_dn;
 313         struct berval ls_req;
 314         struct berval ls_mod;
 315         struct berval ls_newRdn;
 316         struct berval ls_delRdn;
 317         struct berval ls_newSup;
 318 } logschema;
 319
 320 static logschema changelog_sc = {
 321         BER_BVC("targetDN"),
 322         BER_BVC("changeType"),
 323         BER_BVC("changes"),
 324         BER_BVC("newRDN"),
 325         BER_BVC("deleteOldRDN"),
 326         BER_BVC("newSuperior")
 327 };
 328
 329 static logschema accesslog_sc = {
 330         BER_BVC("reqDN"),
 331         BER_BVC("reqType"),
 332         BER_BVC("reqMod"),
 333         BER_BVC("reqNewRDN"),
 334         BER_BVC("reqDeleteOldRDN"),
 335         BER_BVC("reqNewSuperior")
 336 };
 337
 338 static int
 339 ldap_sync_search(
 340         syncinfo_t *si,
 341         void *ctx )
 342 {
 343         BerElementBuffer berbuf;
 344         BerElement *ber = (BerElement *)&berbuf;
 345         LDAPControl c[2], *ctrls[3];
 346         int rc;
 347         int rhint;
 348         char *base;
 349         char **attrs, *lattrs[8];
 350         char *filter;
 351         int attrsonly;
 352         int scope;
 353
 354         /* setup LDAP SYNC control */
 355         ber_init2( ber, NULL, LBER_USE_DER );
 356         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 357
 358         /* If we're using a log but we have no state, then fallback to
 359          * normal mode for a full refresh.
 360          */
 361         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 362                 si->si_logstate = SYNCLOG_FALLBACK;
 363         }
 364
 365         /* Use the log parameters if we're in log mode */
 366         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 367                 logschema *ls;
 368                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 369                         ls = &accesslog_sc;
 370                 else
 371                         ls = &changelog_sc;
 372                 lattrs[0] = ls->ls_dn.bv_val;
 373                 lattrs[1] = ls->ls_req.bv_val;
 374                 lattrs[2] = ls->ls_mod.bv_val;
 375                 lattrs[3] = ls->ls_newRdn.bv_val;
 376                 lattrs[4] = ls->ls_delRdn.bv_val;
 377                 lattrs[5] = ls->ls_newSup.bv_val;
 378                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 379                 lattrs[7] = NULL;
 380
 381                 rhint = 0;
 382                 base = si->si_logbase.bv_val;
 383                 filter = si->si_logfilterstr.bv_val;
 384                 attrs = lattrs;
 385                 attrsonly = 0;
 386                 scope = LDAP_SCOPE_SUBTREE;
 387         } else {
 388                 rhint = 1;
 389                 base = si->si_base.bv_val;
 390                 filter = si->si_filterstr.bv_val;
 391                 attrs = si->si_attrs;
 392                 attrsonly = si->si_attrsonly;
 393                 scope = si->si_scope;
 394         }
 395         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 396                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 397         } else {
 398                 si->si_type = si->si_ctype;
 399         }
 400
 401         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 402         {
 403                 ber_printf( ber, "{eOb}",
 404                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 405         } else {
 406                 ber_printf( ber, "{eb}",
 407                         abs(si->si_type), rhint );
 408         }
 409
 410         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 411                 ber_free_buf( ber );
 412                 return rc;
 413         }
 414
 415         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 416         c[0].ldctl_iscritical = si->si_type < 0;
 417         ctrls[0] = &c[0];
 418
 419         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 420                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 421                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 422                 c[1].ldctl_iscritical = 1;
 423                 ctrls[1] = &c[1];
 424                 ctrls[2] = NULL;
 425         } else {
 426                 ctrls[1] = NULL;
 427         }
 428
 429         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 430                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 431         ber_free_buf( ber );
 432         return rc;
 433 }
 434
 435 static int
 436 do_syncrep1(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         int     rc;
 441         int cmdline_cookie_found = 0;
 442
 443         struct sync_cookie      *sc = NULL;
 444 #ifdef HAVE_TLS
 445         void    *ssl;
 446 #endif
 447
 448         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 449         if ( rc != LDAP_SUCCESS ) {
 450                 goto done;
 451         }
 452         op->o_protocol = LDAP_VERSION3;
 453
 454         /* Set SSF to strongest of TLS, SASL SSFs */
 455         op->o_sasl_ssf = 0;
 456         op->o_tls_ssf = 0;
 457         op->o_transport_ssf = 0;
 458 #ifdef HAVE_TLS
 459         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 460                 == LDAP_SUCCESS && ssl != NULL )
 461         {
 462                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 463         }
 464 #endif /* HAVE_TLS */
 465         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 466         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 467                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 468
 469         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 470
 471         /* We've just started up, or the remote server hasn't sent us
 472          * any meaningful state.
 473          */
 474         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 475                 int i;
 476
 477                 si->si_syncCookie.rid = si->si_rid;
 478                 si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 479                         slap_serverID;
 480
 481                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 482                         if ( si->si_rid == sc->rid ) {
 483                                 cmdline_cookie_found = 1;
 484                                 break;
 485                         }
 486                 }
 487
 488                 if ( cmdline_cookie_found ) {
 489                         /* cookie is supplied in the command line */
 490
 491                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 492
 493                         /* ctxcsn wasn't parsed yet, do it now */
 494                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 495                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 496                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 497                         slap_sync_cookie_free( sc, 1 );
 498                 } else {
 499                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 500                         if ( !si->si_cookieState->cs_num ) {
 501                                 /* get contextCSN shadow replica from database */
 502                                 BerVarray csn = NULL;
 503                                 void *ctx = op->o_tmpmemctx;
 504
 505                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 506                                 op->o_req_dn = op->o_req_ndn;
 507
 508                                 /* try to read stored contextCSN */
 509                                 op->o_tmpmemctx = NULL;
 510                                 backend_attribute( op, NULL, &op->o_req_ndn,
 511                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 512                                 op->o_tmpmemctx = ctx;
 513                                 if ( csn ) {
 514                                         si->si_cookieState->cs_vals = csn;
 515                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 516                                         si->si_cookieState->cs_num = i;
 517                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 518                                 }
 519                         }
 520                         if ( si->si_cookieState->cs_num ) {
 521                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 522                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 523                                         si->si_cookieState->cs_vals, NULL )) {
 524                                         rc = LDAP_NO_MEMORY;
 525                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 526                                         goto done;
 527                                 }
 528                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 529                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 530                                         sizeof(int) );
 531                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 532                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 533                         }
 534                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 535                 }
 536
 537                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 538                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 539                         si->si_syncCookie.sid );
 540         } else {
 541                 AttributeName at[2];
 542                 Attribute a = {0};
 543                 Entry e = {0};
 544                 SlapReply rs = {0};
 545                 int i, j, changed = 0;
 546
 547                 /* Look for contextCSN from syncprov overlay. If
 548                  * there's no overlay, this will be a no-op. That means
 549                  * this is a pure consumer, so local changes will not be
 550                  * allowed, and all changes will already be reflected in
 551                  * the cookieState.
 552                  */
 553                 a.a_desc = slap_schema.si_ad_contextCSN;
 554                 e.e_attrs = &a;
 555                 e.e_name = si->si_wbe->be_suffix[0];
 556                 e.e_nname = si->si_wbe->be_nsuffix[0];
 557                 rs.sr_entry = &e;
 558                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 559                 at[0].an_name = a.a_desc->ad_cname;
 560                 at[0].an_desc = a.a_desc;
 561                 BER_BVZERO( &at[1].an_name );
 562                 op->o_req_dn = e.e_name;
 563                 op->o_req_ndn = e.e_nname;
 564
 565                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 566                 rc = backend_operational( op, &rs );
 567                 if ( rc == LDAP_SUCCESS && a.a_vals ) {
 568                         int num = a.a_numvals;
 569                         /* check for differences */
 570                         if ( num != si->si_cookieState->cs_num ) {
 571                                 changed = 1;
 572                         } else {
 573                                 for ( i=0; i<num; i++ ) {
 574                                         if ( ber_bvcmp( &a.a_vals[i],
 575                                                 &si->si_cookieState->cs_vals[i] )) {
 576                                                 changed =1;
 577                                                 break;
 578                                         }
 579                                 }
 580                         }
 581                         if ( changed ) {
 582                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 583                                 ch_free( si->si_cookieState->cs_sids );
 584                                 si->si_cookieState->cs_num = num;
 585                                 si->si_cookieState->cs_vals = a.a_vals;
 586                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_vals,
 587                                         num, NULL );
 588                                 si->si_cookieState->cs_age++;
 589                         } else {
 590                                 ber_bvarray_free( a.a_vals );
 591                         }
 592                         changed = 0;
 593                 }
 594                 /* See if the cookieState has changed due to anything outside
 595                  * this particular consumer. That includes other consumers in
 596                  * the same context, or local changes detected above.
 597                  */
 598                 if ( si->si_cookieState->cs_num > 1 && si->si_cookieAge !=
 599                         si->si_cookieState->cs_age ) {
 600
 601                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 602                                 /* bogus, just dup everything */
 603                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 604                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 605                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 606                                                 si->si_cookieState->cs_vals, NULL );
 607                                         changed = 1;
 608                                         break;
 609                                 }
 610                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 611                                         if ( si->si_syncCookie.sids[i] !=
 612                                                 si->si_cookieState->cs_sids[j] )
 613                                                 continue;
 614                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 615                                                 &si->si_cookieState->cs_vals[j] ))
 616                                                 break;
 617                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 618                                                 &si->si_cookieState->cs_vals[j] );
 619                                         changed = 1;
 620                                         break;
 621                                 }
 622                         }
 623                         if ( changed ) {
 624                                 ch_free( si->si_syncCookie.octet_str.bv_val );
 625                                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 626                                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 627                                         SLAP_SINGLE_SHADOW( si->si_be ) ? -1 : slap_serverID );
 628                         }
 629                 }
 630                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 631         }
 632
 633         si->si_refreshDone = 0;
 634
 635         rc = ldap_sync_search( si, op->o_tmpmemctx );
 636
 637         if( rc != LDAP_SUCCESS ) {
 638                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 639                         "ldap_search_ext: %s (%d)\n",
 640                         si->si_ridtxt, ldap_err2string( rc ), rc );
 641         }
 642
 643 done:
 644         if ( rc ) {
 645                 if ( si->si_ld ) {
 646                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 647                         si->si_ld = NULL;
 648                 }
 649         }
 650
 651         return rc;
 652 }
 653
 654 static int
 655 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 656 {
 657         int i, j, match = 0;
 658         const char *text;
 659
 660         *which = 0;
 661
 662         if ( sc1->numcsns < sc2->numcsns ) {
 663                 *which = sc1->numcsns;
 664                 return -1;
 665         }
 666
 667         for (i=0; !BER_BVISNULL( &sc1->ctxcsn[i] ); i++) {
 668                 for (j=0; !BER_BVISNULL( &sc2->ctxcsn[j] ); j++) {
 669                         if ( sc1->sids[i] != sc2->sids[j] )
 670                                 continue;
 671                         value_match( &match, slap_schema.si_ad_entryCSN,
 672                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 673                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 674                                 &sc1->ctxcsn[i], &sc2->ctxcsn[i], &text );
 675                         if ( match < 0 ) {
 676                                 *which = j;
 677                                 return match;
 678                         }
 679                         break;
 680                 }
 681         }
 682         return match;
 683 }
 684
 685 static int
 686 do_syncrep2(
 687         Operation *op,
 688         syncinfo_t *si )
 689 {
 690         LDAPControl     **rctrls = NULL;
 691         LDAPControl     *rctrlp;
 692
 693         BerElementBuffer berbuf;
 694         BerElement      *ber = (BerElement *)&berbuf;
 695
 696         LDAPMessage     *res = NULL;
 697         LDAPMessage     *msg = NULL;
 698
 699         char            *retoid = NULL;
 700         struct berval   *retdata = NULL;
 701
 702         Entry           *entry = NULL;
 703
 704         int             syncstate;
 705         struct berval   syncUUID = BER_BVNULL;
 706         struct sync_cookie      syncCookie = { NULL };
 707         struct sync_cookie      syncCookie_req = { NULL };
 708         struct berval           cookie = BER_BVNULL;
 709
 710         int             rc,
 711                         err = LDAP_SUCCESS;
 712         ber_len_t       len;
 713
 714         struct berval   *psub;
 715         Modifications   *modlist = NULL;
 716
 717         int                             match, m;
 718
 719         struct timeval *tout_p = NULL;
 720         struct timeval tout = { 0, 0 };
 721
 722         int             refreshDeletes = 0;
 723         BerVarray syncUUIDs = NULL;
 724         ber_tag_t si_tag;
 725
 726         if ( slapd_shutdown ) {
 727                 rc = -2;
 728                 goto done;
 729         }
 730
 731         ber_init2( ber, NULL, LBER_USE_DER );
 732         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 733
 734         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 735
 736         psub = &si->si_be->be_nsuffix[0];
 737
 738         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 739
 740         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 741                 tout_p = &tout;
 742         } else {
 743                 tout_p = NULL;
 744         }
 745
 746         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 747                 tout_p, &res ) ) > 0 )
 748         {
 749                 if ( slapd_shutdown ) {
 750                         rc = -2;
 751                         goto done;
 752                 }
 753                 for( msg = ldap_first_message( si->si_ld, res );
 754                         msg != NULL;
 755                         msg = ldap_next_message( si->si_ld, msg ) )
 756                 {
 757                         if ( slapd_shutdown ) {
 758                                 rc = -2;
 759                                 goto done;
 760                         }
 761                         switch( ldap_msgtype( msg ) ) {
 762                         case LDAP_RES_SEARCH_ENTRY:
 763                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 764                                 /* we can't work without the control */
 765                                 rctrlp = NULL;
 766                                 if ( rctrls ) {
 767                                         LDAPControl **next;
 768                                         /* NOTE: make sure we use the right one;
 769                                          * a better approach would be to run thru
 770                                          * the whole list and take care of all */
 771                                         rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 772                                         if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 773                                         {
 774                                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 775                                                         "got search entry with multiple "
 776                                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 777                                                 rc = -1;
 778                                                 goto done;
 779                                         }
 780                                 }
 781                                 if ( rctrlp == NULL ) {
 782                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 783                                                 "got search entry without "
 784                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 785                                         rc = -1;
 786                                         goto done;
 787                                 }
 788                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 789                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 790                                 /* FIXME: what if syncUUID is NULL or empty?
 791                                  * (happens with back-sql...) */
 792                                 if ( BER_BVISEMPTY( &syncUUID ) ) {
 793                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 794                                                 "got empty syncUUID with LDAP_SYNC_%s\n",
 795                                                 si->si_ridtxt,
 796                                                 syncrepl_state2str( syncstate ), 0 );
 797                                         ldap_controls_free( rctrls );
 798                                         rc = -1;
 799                                         goto done;
 800                                 }
 801                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 802                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 803
 804                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 805                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 806
 807                                         if ( !BER_BVISNULL( &cookie ) ) {
 808                                                 ch_free( syncCookie.octet_str.bv_val );
 809                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 810                                         }
 811                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 812                                         {
 813                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 814                                                 if ( syncCookie.ctxcsn ) {
 815                                                         int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 816                                                         for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 817                                                                 if ( si->si_cookieState->cs_sids[i] == sid &&
 818                                                                         ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 819                                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 820                                                                                 si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 821                                                                         ldap_controls_free( rctrls );
 822                                                                         rc = 0;
 823                                                                         goto done;
 824                                                                 }
 825                                                         }
 826                                                 }
 827                                         }
 828                                 }
 829                                 rc = 0;
 830                                 if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 831                                         modlist = NULL;
 832                                         if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 833                                                 syncCookie.ctxcsn )
 834                                         {
 835                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 836                                         } else if ( rc == LDAP_NO_SUCH_OBJECT ) {
 837                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 838                                                 si->si_logstate = SYNCLOG_FALLBACK;
 839                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 840                                         }
 841                                 } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 842                                         &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 843                                 {
 844                                         if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 845                                                 syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 846                                                 syncCookie.ctxcsn )
 847                                         {
 848                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 849                                         }
 850                                 }
 851                                 ldap_controls_free( rctrls );
 852                                 if ( modlist ) {
 853                                         slap_mods_free( modlist, 1 );
 854                                 }
 855                                 if ( rc )
 856                                         goto done;
 857                                 break;
 858
 859                         case LDAP_RES_SEARCH_REFERENCE:
 860                                 Debug( LDAP_DEBUG_ANY,
 861                                         "do_syncrep2: %s reference received error\n",
 862                                         si->si_ridtxt, 0, 0 );
 863                                 break;
 864
 865                         case LDAP_RES_SEARCH_RESULT:
 866                                 Debug( LDAP_DEBUG_SYNC,
 867                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 868                                         si->si_ridtxt, 0, 0 );
 869                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 870                                         &rctrls, 0 );
 871 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 872                                 if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 873                                         /* map old result code to registered code */
 874                                         err = LDAP_SYNC_REFRESH_REQUIRED;
 875                                 }
 876 #endif
 877                                 if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 878                                         if ( si->si_logstate == SYNCLOG_LOGGING ) {
 879                                                 si->si_logstate = SYNCLOG_FALLBACK;
 880                                         }
 881                                         rc = err;
 882                                         goto done;
 883                                 }
 884                                 if ( rctrls ) {
 885                                         rctrlp = *rctrls;
 886                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 887
 888                                         ber_scanf( ber, "{" /*"}"*/);
 889                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 890                                                 ber_scanf( ber, "m", &cookie );
 891
 892                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 893                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 894
 895                                                 if ( !BER_BVISNULL( &cookie ) ) {
 896                                                         ch_free( syncCookie.octet_str.bv_val );
 897                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 898                                                 }
 899                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 900                                                 {
 901                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 902                                                 }
 903                                         }
 904                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 905                                         {
 906                                                 ber_scanf( ber, "b", &refreshDeletes );
 907                                         }
 908                                         ber_scanf( ber, /*"{"*/ "}" );
 909                                 }
 910                                 if ( !syncCookie.ctxcsn ) {
 911                                         match = 1;
 912                                 } else if ( !syncCookie_req.ctxcsn ) {
 913                                         match = -1;
 914                                         m = 0;
 915                                 } else {
 916                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
 917                                 }
 918                                 if ( rctrls ) {
 919                                         ldap_controls_free( rctrls );
 920                                 }
 921                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 922                                         /* FIXME : different error behaviors according to
 923                                          *      1) err code : LDAP_BUSY ...
 924                                          *      2) on err policy : stop service, stop sync, retry
 925                                          */
 926                                         if ( refreshDeletes == 0 && match < 0 &&
 927                                                 err == LDAP_SUCCESS )
 928                                         {
 929                                                 syncrepl_del_nonpresent( op, si, NULL,
 930                                                         &syncCookie.ctxcsn[m] );
 931                                         } else {
 932                                                 avl_free( si->si_presentlist, ch_free );
 933                                                 si->si_presentlist = NULL;
 934                                         }
 935                                 }
 936                                 if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 937                                 {
 938                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 939                                 }
 940                                 if ( err == LDAP_SUCCESS
 941                                         && si->si_logstate == SYNCLOG_FALLBACK ) {
 942                                         si->si_logstate = SYNCLOG_LOGGING;
 943                                         rc = LDAP_SYNC_REFRESH_REQUIRED;
 944                                 } else {
 945                                         rc = -2;
 946                                 }
 947                                 goto done;
 948                                 break;
 949
 950                         case LDAP_RES_INTERMEDIATE:
 951                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 952                                         &retoid, &retdata, NULL, 0 );
 953                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 954                                         ber_init2( ber, retdata, LBER_USE_DER );
 955
 956                                         switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 957                                         ber_tag_t tag;
 958                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 959                                                 Debug( LDAP_DEBUG_SYNC,
 960                                                         "do_syncrep2: %s %s - %s\n",
 961                                                         si->si_ridtxt,
 962                                                         "LDAP_RES_INTERMEDIATE",
 963                                                         "NEW_COOKIE" );
 964                                                 ber_scanf( ber, "tm", &tag, &cookie );
 965                                                 break;
 966                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 967                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 968                                                 Debug( LDAP_DEBUG_SYNC,
 969                                                         "do_syncrep2: %s %s - %s\n",
 970                                                         si->si_ridtxt,
 971                                                         "LDAP_RES_INTERMEDIATE",
 972                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 973                                                         "REFRESH_PRESENT" : "REFRESH_DELETE" );
 974                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 975                                                         si->si_refreshDelete = 1;
 976                                                 } else {
 977                                                         si->si_refreshPresent = 1;
 978                                                 }
 979                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 980                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 981                                                 {
 982                                                         ber_scanf( ber, "m", &cookie );
 983
 984                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 985                                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 986
 987                                                         if ( !BER_BVISNULL( &cookie ) ) {
 988                                                                 ch_free( syncCookie.octet_str.bv_val );
 989                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 990                                                         }
 991                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 992                                                         {
 993                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 994                                                         }
 995                                                 }
 996                                                 /* Defaults to TRUE */
 997                                                 if ( ber_peek_tag( ber, &len ) ==
 998                                                         LDAP_TAG_REFRESHDONE )
 999                                                 {
1000                                                         ber_scanf( ber, "b", &si->si_refreshDone );
1001                                                 } else
1002                                                 {
1003                                                         si->si_refreshDone = 1;
1004                                                 }
1005                                                 ber_scanf( ber, /*"{"*/ "}" );
1006                                                 break;
1007                                         case LDAP_TAG_SYNC_ID_SET:
1008                                                 Debug( LDAP_DEBUG_SYNC,
1009                                                         "do_syncrep2: %s %s - %s\n",
1010                                                         si->si_ridtxt,
1011                                                         "LDAP_RES_INTERMEDIATE",
1012                                                         "SYNC_ID_SET" );
1013                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
1014                                                 if ( ber_peek_tag( ber, &len ) ==
1015                                                         LDAP_TAG_SYNC_COOKIE )
1016                                                 {
1017                                                         ber_scanf( ber, "m", &cookie );
1018
1019                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1020                                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1021
1022                                                         if ( !BER_BVISNULL( &cookie ) ) {
1023                                                                 ch_free( syncCookie.octet_str.bv_val );
1024                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1025                                                         }
1026                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1027                                                         {
1028                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1029                                                                 compare_csns( &syncCookie_req, &syncCookie, &m );
1030                                                         }
1031                                                 }
1032                                                 if ( ber_peek_tag( ber, &len ) ==
1033                                                         LDAP_TAG_REFRESHDELETES )
1034                                                 {
1035                                                         ber_scanf( ber, "b", &refreshDeletes );
1036                                                 }
1037                                                 ber_scanf( ber, "[W]", &syncUUIDs );
1038                                                 ber_scanf( ber, /*"{"*/ "}" );
1039                                                 if ( refreshDeletes ) {
1040                                                         syncrepl_del_nonpresent( op, si, syncUUIDs,
1041                                                                 &syncCookie.ctxcsn[m] );
1042                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1043                                                 } else {
1044                                                         int i;
1045                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1046                                                                 (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1047                                                                 slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1048                                                         }
1049                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1050                                                 }
1051                                                 slap_sync_cookie_free( &syncCookie, 0 );
1052                                                 break;
1053                                         default:
1054                                                 Debug( LDAP_DEBUG_ANY,
1055                                                         "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1056                                                         si->si_ridtxt, (long) si_tag, 0 );
1057                                                 ldap_memfree( retoid );
1058                                                 ber_bvfree( retdata );
1059                                                 continue;
1060                                         }
1061
1062                                         if ( !syncCookie.ctxcsn ) {
1063                                                 match = 1;
1064                                         } else if ( !syncCookie_req.ctxcsn ) {
1065                                                 match = -1;
1066                                                 m = 0;
1067                                         } else {
1068                                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1069                                         }
1070
1071                                         if ( match < 0 ) {
1072                                                 if ( si->si_refreshPresent == 1 ) {
1073                                                         syncrepl_del_nonpresent( op, si, NULL,
1074                                                                 &syncCookie.ctxcsn[m] );
1075                                                 }
1076
1077                                                 if ( syncCookie.ctxcsn )
1078                                                 {
1079                                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1080                                                 }
1081                                         }
1082
1083                                         ldap_memfree( retoid );
1084                                         ber_bvfree( retdata );
1085                                         break;
1086
1087                                 } else {
1088                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1089                                                 "unknown intermediate response (%d)\n",
1090                                                 si->si_ridtxt, rc, 0 );
1091                                         ldap_memfree( retoid );
1092                                         ber_bvfree( retdata );
1093                                         break;
1094                                 }
1095                                 break;
1096
1097                         default:
1098                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1099                                         "unknown message (0x%02lx)\n",
1100                                         si->si_ridtxt,
1101                                         (unsigned long)ldap_msgtype( msg ), 0 );
1102                                 break;
1103
1104                         }
1105                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1106                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1107                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1108                                 slap_sync_cookie_free( &syncCookie, 0 );
1109                         }
1110                 }
1111                 ldap_msgfree( res );
1112                 res = NULL;
1113         }
1114
1115         if ( rc == -1 ) {
1116                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1117                 err = rc;
1118         }
1119
1120 done:
1121         if ( err != LDAP_SUCCESS ) {
1122                 Debug( LDAP_DEBUG_ANY,
1123                         "do_syncrep2: %s (%d) %s\n",
1124                         si->si_ridtxt, err, ldap_err2string( err ) );
1125         }
1126
1127         slap_sync_cookie_free( &syncCookie, 0 );
1128         slap_sync_cookie_free( &syncCookie_req, 0 );
1129
1130         if ( res ) ldap_msgfree( res );
1131
1132         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1133                 if ( si->si_conn ) {
1134                         connection_client_stop( si->si_conn );
1135                         si->si_conn = NULL;
1136                 }
1137                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1138                 si->si_ld = NULL;
1139         }
1140
1141         return rc;
1142 }
1143
1144 static void *
1145 do_syncrepl(
1146         void    *ctx,
1147         void    *arg )
1148 {
1149         struct re_s* rtask = arg;
1150         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1151         Connection conn = {0};
1152         OperationBuffer opbuf;
1153         Operation *op;
1154         int rc = LDAP_SUCCESS;
1155         int dostop = 0;
1156         ber_socket_t s;
1157         int i, defer = 1, fail = 0;
1158         Backend *be;
1159
1160         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1161
1162         if ( si == NULL )
1163                 return NULL;
1164
1165         /* Don't wait around if there's a previous session still running */
1166         if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex ))
1167                 return NULL;
1168
1169         switch( abs( si->si_type ) ) {
1170         case LDAP_SYNC_REFRESH_ONLY:
1171         case LDAP_SYNC_REFRESH_AND_PERSIST:
1172                 break;
1173         default:
1174                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1175                 return NULL;
1176         }
1177
1178         if ( slapd_shutdown ) {
1179                 if ( si->si_ld ) {
1180                         if ( si->si_conn ) {
1181                                 connection_client_stop( si->si_conn );
1182                                 si->si_conn = NULL;
1183                         }
1184                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1185                         si->si_ld = NULL;
1186                 }
1187                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1188                 return NULL;
1189         }
1190
1191         connection_fake_init( &conn, &opbuf, ctx );
1192         op = &opbuf.ob_op;
1193
1194         /* use global malloc for now */
1195         op->o_tmpmemctx = NULL;
1196         op->o_tmpmfuncs = &ch_mfuncs;
1197
1198         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1199         op->o_bd = be = si->si_be;
1200         op->o_dn = op->o_bd->be_rootdn;
1201         op->o_ndn = op->o_bd->be_rootndn;
1202         if ( !si->si_schemachecking )
1203                 op->o_no_schema_check = 1;
1204
1205         /* If we're glued, send writes through the glue parent */
1206         if ( !si->si_wbe ) {
1207                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1208                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1209                 } else {
1210                         si->si_wbe = be;
1211                 }
1212         }
1213
1214         /* Establish session, do search */
1215         if ( !si->si_ld ) {
1216                 si->si_refreshDelete = 0;
1217                 si->si_refreshPresent = 0;
1218                 rc = do_syncrep1( op, si );
1219         }
1220
1221 reload:
1222         /* Process results */
1223         if ( rc == LDAP_SUCCESS ) {
1224                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1225
1226                 rc = do_syncrep2( op, si );
1227                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1228                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1229                         goto reload;
1230                 }
1231
1232                 /* We got deleted while running on cn=config */
1233                 if ( !si->si_ctype ) {
1234                         if ( si->si_conn )
1235                                 dostop = 1;
1236                         rc = -1;
1237                 }
1238
1239                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1240                         /* If we succeeded, enable the connection for further listening.
1241                          * If we failed, tear down the connection and reschedule.
1242                          */
1243                         if ( rc == LDAP_SUCCESS ) {
1244                                 if ( si->si_conn ) {
1245                                         connection_client_enable( si->si_conn );
1246                                 } else {
1247                                         si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1248                                 }
1249                         } else if ( si->si_conn ) {
1250                                 dostop = 1;
1251                         }
1252                 } else {
1253                         if ( rc == -2 ) rc = 0;
1254                 }
1255         }
1256
1257         /* At this point, we have 4 cases:
1258          * 1) for any hard failure, give up and remove this task
1259          * 2) for ServerDown, reschedule this task to run
1260          * 3) for Refresh and Success, reschedule to run
1261          * 4) for Persist and Success, reschedule to defer
1262          */
1263         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1264
1265         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1266                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1267         }
1268
1269         if ( dostop ) {
1270                 connection_client_stop( si->si_conn );
1271                 si->si_conn = NULL;
1272         }
1273
1274         if ( rc == LDAP_SUCCESS ) {
1275                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1276                         defer = 0;
1277                 }
1278                 rtask->interval.tv_sec = si->si_interval;
1279                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1280                 if ( si->si_retrynum ) {
1281                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1282                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1283                         }
1284                         si->si_retrynum[i] = RETRYNUM_TAIL;
1285                 }
1286         } else {
1287                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1288                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1289                                 break;
1290                 }
1291
1292                 if ( !si->si_ctype
1293                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1294                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1295                         fail = RETRYNUM_TAIL;
1296                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1297                         if ( si->si_retrynum[i] > 0 )
1298                                 si->si_retrynum[i]--;
1299                         fail = si->si_retrynum[i];
1300                         rtask->interval.tv_sec = si->si_retryinterval[i];
1301                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1302                         slap_wake_listener();
1303                 }
1304         }
1305
1306         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1307         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1308
1309         if ( rc ) {
1310                 if ( fail == RETRYNUM_TAIL ) {
1311                         Debug( LDAP_DEBUG_ANY,
1312                                 "do_syncrepl: %s quitting\n",
1313                                 si->si_ridtxt, 0, 0 );
1314                 } else if ( fail > 0 ) {
1315                         Debug( LDAP_DEBUG_ANY,
1316                                 "do_syncrepl: %s retrying (%d retries left)\n",
1317                                 si->si_ridtxt, fail, 0 );
1318                 } else {
1319                         Debug( LDAP_DEBUG_ANY,
1320                                 "do_syncrepl: %s retrying\n",
1321                                 si->si_ridtxt, 0, 0 );
1322                 }
1323         }
1324
1325         /* Do final delete cleanup */
1326         if ( !si->si_ctype ) {
1327                 cookie_state *cs = NULL;
1328                 syncinfo_t **sip;
1329
1330                 cs = be->be_syncinfo->si_cookieState;
1331                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1332                 *sip = si->si_next;
1333                 syncinfo_free( si, 0 );
1334                 if ( !be->be_syncinfo ) {
1335                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1336                         if ( cs ) {
1337                                 ch_free( cs->cs_sids );
1338                                 ber_bvarray_free( cs->cs_vals );
1339                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1340                                 ch_free( cs );
1341                         }
1342                 }
1343         }
1344         return NULL;
1345 }
1346
1347 static slap_verbmasks modops[] = {
1348         { BER_BVC("add"), LDAP_REQ_ADD },
1349         { BER_BVC("delete"), LDAP_REQ_DELETE },
1350         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1351         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1352         { BER_BVNULL, 0 }
1353 };
1354
1355 static Modifications *
1356 syncrepl_accesslog_mods(
1357         syncinfo_t *si,
1358         struct berval *vals
1359 )
1360 {
1361         char *colon;
1362         const char *text;
1363         AttributeDescription *ad;
1364         struct berval bv, bv2;
1365         short op;
1366         Modifications *mod = NULL, *modlist = NULL, **modtail;
1367         int i;
1368
1369         modtail = &modlist;
1370
1371         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1372                 ad = NULL;
1373                 bv = vals[i];
1374
1375                 colon = ber_bvchr( &bv, ':' );
1376                 if ( !colon ) {
1377                         /* Invalid */
1378                         continue;
1379                 }
1380
1381                 bv.bv_len = colon - bv.bv_val;
1382                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1383                         /* Invalid */
1384                         continue;
1385                 }
1386
1387                 /* Ignore dynamically generated attrs */
1388                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1389                         continue;
1390                 }
1391
1392                 /* Ignore excluded attrs */
1393                 if ( ldap_charray_inlist( si->si_exattrs,
1394                         ad->ad_type->sat_cname.bv_val ) )
1395                 {
1396                         continue;
1397                 }
1398
1399                 switch(colon[1]) {
1400                 case '+':       op = LDAP_MOD_ADD; break;
1401                 case '-':       op = LDAP_MOD_DELETE; break;
1402                 case '=':       op = LDAP_MOD_REPLACE; break;
1403                 case '#':       op = LDAP_MOD_INCREMENT; break;
1404                 default:        continue;
1405                 }
1406
1407                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1408                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1409                         mod->sml_flags = 0;
1410                         mod->sml_op = op;
1411                         mod->sml_next = NULL;
1412                         mod->sml_desc = ad;
1413                         mod->sml_type = ad->ad_cname;
1414                         mod->sml_values = NULL;
1415                         mod->sml_nvalues = NULL;
1416                         mod->sml_numvals = 0;
1417
1418                         *modtail = mod;
1419                         modtail = &mod->sml_next;
1420                 }
1421                 if ( colon[2] == ' ' ) {
1422                         bv.bv_val = colon + 3;
1423                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1424                         ber_dupbv( &bv2, &bv );
1425                         ber_bvarray_add( &mod->sml_values, &bv2 );
1426                         mod->sml_numvals++;
1427                 }
1428         }
1429         return modlist;
1430 }
1431
1432 static Modifications *
1433 syncrepl_changelog_mods(
1434         syncinfo_t *si,
1435         struct berval *vals
1436 )
1437 {
1438         return NULL;    /* FIXME */
1439 }
1440
1441 static int
1442 syncrepl_message_to_op(
1443         syncinfo_t      *si,
1444         Operation       *op,
1445         LDAPMessage     *msg
1446 )
1447 {
1448         BerElement      *ber = NULL;
1449         Modifications   *modlist = NULL;
1450         logschema *ls;
1451         SlapReply rs = { REP_RESULT };
1452         slap_callback cb = { NULL, null_callback, NULL, NULL };
1453
1454         const char      *text;
1455         char txtbuf[SLAP_TEXT_BUFLEN];
1456         size_t textlen = sizeof txtbuf;
1457
1458         struct berval   bdn, dn = BER_BVNULL, ndn;
1459         struct berval   bv, *bvals = NULL;
1460         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1461                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1462                 psup = BER_BVNULL, nsup = BER_BVNULL;
1463         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1464
1465         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1466                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1467                         "Message type should be entry (%d)",
1468                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1469                 return -1;
1470         }
1471
1472         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1473                 ls = &accesslog_sc;
1474         else
1475                 ls = &changelog_sc;
1476
1477         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1478
1479         if ( rc != LDAP_SUCCESS ) {
1480                 Debug( LDAP_DEBUG_ANY,
1481                         "syncrepl_message_to_op: %s dn get failed (%d)",
1482                         si->si_ridtxt, rc, 0 );
1483                 return rc;
1484         }
1485
1486         op->o_tag = LBER_DEFAULT;
1487         op->o_bd = si->si_wbe;
1488
1489         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1490                 == LDAP_SUCCESS ) {
1491                 if ( bv.bv_val == NULL )
1492                         break;
1493
1494                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1495                         bdn = bvals[0];
1496                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1497                         ber_dupbv( &op->o_req_dn, &dn );
1498                         ber_dupbv( &op->o_req_ndn, &ndn );
1499                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1500                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1501                         freeReqDn = 1;
1502                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1503                         int i = verb_to_mask( bvals[0].bv_val, modops );
1504                         if ( i < 0 ) {
1505                                 Debug( LDAP_DEBUG_ANY,
1506                                         "syncrepl_message_to_op: %s unknown op %s",
1507                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1508                                 ch_free( bvals );
1509                                 rc = -1;
1510                                 goto done;
1511                         }
1512                         op->o_tag = modops[i].mask;
1513                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1514                         /* Parse attribute into modlist */
1515                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1516                                 modlist = syncrepl_accesslog_mods( si, bvals );
1517                         } else {
1518                                 modlist = syncrepl_changelog_mods( si, bvals );
1519                         }
1520                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1521                         rdn = bvals[0];
1522                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1523                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1524                                 deleteOldRdn = 1;
1525                         }
1526                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1527                         sup = bvals[0];
1528                 } else if ( !ber_bvstrcasecmp( &bv,
1529                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1530                 {
1531                         slap_queue_csn( op, bvals );
1532                 }
1533                 ch_free( bvals );
1534         }
1535
1536         /* If we didn't get a mod type or a target DN, bail out */
1537         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1538                 rc = -1;
1539                 goto done;
1540         }
1541
1542         op->o_callback = &cb;
1543         slap_op_time( &op->o_time, &op->o_tincr );
1544
1545         switch( op->o_tag ) {
1546         case LDAP_REQ_ADD:
1547         case LDAP_REQ_MODIFY:
1548                 /* If we didn't get required data, bail */
1549                 if ( !modlist ) goto done;
1550
1551                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1552
1553                 if ( rc != LDAP_SUCCESS ) {
1554                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1555                                 "mods check (%s)\n",
1556                                 si->si_ridtxt, text, 0 );
1557                         goto done;
1558                 }
1559
1560                 if ( op->o_tag == LDAP_REQ_ADD ) {
1561                         Entry *e = entry_alloc();
1562                         op->ora_e = e;
1563                         op->ora_e->e_name = op->o_req_dn;
1564                         op->ora_e->e_nname = op->o_req_ndn;
1565                         freeReqDn = 0;
1566                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1567                         if( rc != LDAP_SUCCESS ) {
1568                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1569                                 "mods2entry (%s)\n",
1570                                         si->si_ridtxt, text, 0 );
1571                         } else {
1572                                 rc = op->o_bd->be_add( op, &rs );
1573                                 Debug( LDAP_DEBUG_SYNC,
1574                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1575                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1576                         }
1577                         if ( e == op->ora_e )
1578                                 be_entry_release_w( op, op->ora_e );
1579                 } else {
1580                         op->orm_modlist = modlist;
1581                         op->o_bd = si->si_wbe;
1582                         op->o_permissive_modify = SLAP_CONTROL_NONCRITICAL;
1583                         rc = op->o_bd->be_modify( op, &rs );
1584                         op->o_permissive_modify = SLAP_CONTROL_NONE;
1585                         modlist = op->orm_modlist;
1586                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1587                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1588                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1589                         op->o_bd = si->si_be;
1590                 }
1591                 break;
1592         case LDAP_REQ_MODRDN:
1593                 if ( BER_BVISNULL( &rdn ) ) goto done;
1594
1595                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1596                         goto done;
1597                 }
1598                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1599                         goto done;
1600                 }
1601                 if ( !BER_BVISNULL( &sup ) ) {
1602                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1603                                 goto done;
1604                         }
1605                         op->orr_newSup = &psup;
1606                         op->orr_nnewSup = &nsup;
1607                 } else {
1608                         op->orr_newSup = NULL;
1609                         op->orr_nnewSup = NULL;
1610                 }
1611                 op->orr_newrdn = prdn;
1612                 op->orr_nnewrdn = nrdn;
1613                 op->orr_deleteoldrdn = deleteOldRdn;
1614                 op->orr_modlist = NULL;
1615                 if ( slap_modrdn2mods( op, &rs ) ) {
1616                         goto done;
1617                 }
1618
1619                 /* Append modlist for operational attrs */
1620                 {
1621                         Modifications *m;
1622
1623                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1624                                 ;
1625                         m->sml_next = modlist;
1626                         modlist = NULL;
1627                 }
1628                 rc = op->o_bd->be_modrdn( op, &rs );
1629                 slap_mods_free( op->orr_modlist, 1 );
1630                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1631                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1632                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1633                 break;
1634         case LDAP_REQ_DELETE:
1635                 rc = op->o_bd->be_delete( op, &rs );
1636                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1637                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1638                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1639                 break;
1640         }
1641 done:
1642         slap_graduate_commit_csn( op );
1643         op->o_bd = si->si_be;
1644         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1645         BER_BVZERO( &op->o_csn );
1646         if ( modlist ) {
1647                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1648         }
1649         if ( !BER_BVISNULL( &rdn ) ) {
1650                 if ( !BER_BVISNULL( &nsup ) ) {
1651                         ch_free( nsup.bv_val );
1652                 }
1653                 if ( !BER_BVISNULL( &psup ) ) {
1654                         ch_free( psup.bv_val );
1655                 }
1656                 if ( !BER_BVISNULL( &nrdn ) ) {
1657                         ch_free( nrdn.bv_val );
1658                 }
1659                 if ( !BER_BVISNULL( &prdn ) ) {
1660                         ch_free( prdn.bv_val );
1661                 }
1662         }
1663         if ( freeReqDn ) {
1664                 ch_free( op->o_req_ndn.bv_val );
1665                 ch_free( op->o_req_dn.bv_val );
1666         }
1667         ber_free( ber, 0 );
1668         return rc;
1669 }
1670
1671 static int
1672 syncrepl_message_to_entry(
1673         syncinfo_t      *si,
1674         Operation       *op,
1675         LDAPMessage     *msg,
1676         Modifications   **modlist,
1677         Entry                   **entry,
1678         int             syncstate
1679 )
1680 {
1681         Entry           *e = NULL;
1682         BerElement      *ber = NULL;
1683         Modifications   tmp;
1684         Modifications   *mod;
1685         Modifications   **modtail = modlist;
1686
1687         const char      *text;
1688         char txtbuf[SLAP_TEXT_BUFLEN];
1689         size_t textlen = sizeof txtbuf;
1690
1691         struct berval   bdn = BER_BVNULL, dn, ndn;
1692         int             rc, is_ctx;
1693
1694         *modlist = NULL;
1695
1696         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1697                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1698                         "Message type should be entry (%d)",
1699                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1700                 return -1;
1701         }
1702
1703         op->o_tag = LDAP_REQ_ADD;
1704
1705         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1706         if ( rc != LDAP_SUCCESS ) {
1707                 Debug( LDAP_DEBUG_ANY,
1708                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1709                         si->si_ridtxt, rc, 0 );
1710                 return rc;
1711         }
1712
1713         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1714                 /* NOTE: this could be done even before decoding the DN,
1715                  * although encoding errors wouldn't be detected */
1716                 rc = LDAP_SUCCESS;
1717                 goto done;
1718         }
1719
1720         if ( entry == NULL ) {
1721                 return -1;
1722         }
1723
1724         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1725         ber_dupbv( &op->o_req_dn, &dn );
1726         ber_dupbv( &op->o_req_ndn, &ndn );
1727         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1728         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1729
1730         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1731
1732         e = entry_alloc();
1733         e->e_name = op->o_req_dn;
1734         e->e_nname = op->o_req_ndn;
1735
1736         while ( ber_remaining( ber ) ) {
1737                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1738                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1739                 {
1740                         break;
1741                 }
1742
1743                 /* Drop all updates to the contextCSN of the context entry
1744                  * (ITS#4622, etc.)
1745                  */
1746                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1747                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1748                         ber_bvarray_free( tmp.sml_values );
1749                         continue;
1750                 }
1751
1752                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1753
1754                 mod->sml_op = LDAP_MOD_REPLACE;
1755                 mod->sml_flags = 0;
1756                 mod->sml_next = NULL;
1757                 mod->sml_desc = NULL;
1758                 mod->sml_type = tmp.sml_type;
1759                 mod->sml_values = tmp.sml_values;
1760                 mod->sml_nvalues = NULL;
1761                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1762
1763                 *modtail = mod;
1764                 modtail = &mod->sml_next;
1765         }
1766
1767         if ( *modlist == NULL ) {
1768                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1769                         si->si_ridtxt, 0, 0 );
1770                 rc = -1;
1771                 goto done;
1772         }
1773
1774         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1775
1776         if ( rc != LDAP_SUCCESS ) {
1777                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1778                         si->si_ridtxt, text, 0 );
1779                 goto done;
1780         }
1781
1782         /* Strip out dynamically generated attrs */
1783         for ( modtail = modlist; *modtail ; ) {
1784                 mod = *modtail;
1785                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1786                         *modtail = mod->sml_next;
1787                         slap_mod_free( &mod->sml_mod, 0 );
1788                         ch_free( mod );
1789                 } else {
1790                         modtail = &mod->sml_next;
1791                 }
1792         }
1793
1794         /* Strip out attrs in exattrs list */
1795         for ( modtail = modlist; *modtail ; ) {
1796                 mod = *modtail;
1797                 if ( ldap_charray_inlist( si->si_exattrs,
1798                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1799                 {
1800                         *modtail = mod->sml_next;
1801                         slap_mod_free( &mod->sml_mod, 0 );
1802                         ch_free( mod );
1803                 } else {
1804                         modtail = &mod->sml_next;
1805                 }
1806         }
1807
1808         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1809         if( rc != LDAP_SUCCESS ) {
1810                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1811                         si->si_ridtxt, text, 0 );
1812         }
1813
1814 done:
1815         ber_free( ber, 0 );
1816         if ( rc != LDAP_SUCCESS ) {
1817                 if ( e ) {
1818                         entry_free( e );
1819                         e = NULL;
1820                 }
1821         }
1822         if ( entry )
1823                 *entry = e;
1824
1825         return rc;
1826 }
1827
1828 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1829
1830 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1831  * entry if a previous refresh was interrupted before sending us a new
1832  * context state. We try to compare the new entry to the existing entry
1833  * and ignore the new entry if they are the same.
1834  *
1835  * Also, we may get an update where the entryDN has changed, due to
1836  * a ModDn on the provider. We detect this as well, so we can issue
1837  * the corresponding operation locally.
1838  *
1839  * In the case of a modify, we get a list of all the attributes
1840  * in the original entry. Rather than deleting the entry and re-adding it,
1841  * we issue a Modify request that deletes all the attributes and adds all
1842  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1843  * entry.
1844  *
1845  * We otherwise distinguish ModDN from Modify; in the case of
1846  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1847  * operational attributes from the entry, and do a regular ModDN.
1848  */
1849 typedef struct dninfo {
1850         Entry *new_entry;
1851         struct berval dn;
1852         struct berval ndn;
1853         int renamed;    /* Was an existing entry renamed? */
1854         int delOldRDN;  /* Was old RDN deleted? */
1855         Modifications **modlist;        /* the modlist we received */
1856         Modifications *mods;    /* the modlist we compared */
1857 } dninfo;
1858
1859 /* return 1 if inserted, 0 otherwise */
1860 static int
1861 avl_presentlist_insert(
1862         syncinfo_t* si,
1863         struct berval *syncUUID )
1864 {
1865         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1866
1867         syncuuid_bv->bv_len = syncUUID->bv_len;
1868         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1869         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1870         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1871
1872         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1873                 syncuuid_cmp, avl_dup_error ) )
1874         {
1875                 ch_free( syncuuid_bv );
1876                 return 0;
1877         }
1878
1879         return 1;
1880 }
1881
1882 static int
1883 syncrepl_entry(
1884         syncinfo_t* si,
1885         Operation *op,
1886         Entry* entry,
1887         Modifications** modlist,
1888         int syncstate,
1889         struct berval* syncUUID,
1890         struct berval* syncCSN )
1891 {
1892         Backend *be = op->o_bd;
1893         slap_callback   cb = { NULL, NULL, NULL, NULL };
1894         int syncuuid_inserted = 0;
1895         struct berval   syncUUID_strrep = BER_BVNULL;
1896
1897         SlapReply       rs_search = {REP_RESULT};
1898         SlapReply       rs_delete = {REP_RESULT};
1899         SlapReply       rs_add = {REP_RESULT};
1900         SlapReply       rs_modify = {REP_RESULT};
1901         Filter f = {0};
1902         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1903         int rc = LDAP_SUCCESS;
1904
1905         struct berval pdn = BER_BVNULL;
1906         dninfo dni = {0};
1907         int     retry = 1;
1908         int     freecsn = 1;
1909
1910         Debug( LDAP_DEBUG_SYNC,
1911                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1912                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1913
1914         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1915                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1916                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1917                 }
1918         }
1919
1920         if ( syncstate == LDAP_SYNC_PRESENT ) {
1921                 return 0;
1922         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1923                 if ( entry == NULL ) {
1924                         return 0;
1925                 }
1926         }
1927
1928         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1929         if ( syncstate != LDAP_SYNC_DELETE ) {
1930                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1931
1932                 if ( a == NULL ) {
1933                         /* add if missing */
1934                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1935                                 &syncUUID_strrep, syncUUID );
1936
1937                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1938                         /* replace only if necessary */
1939                         if ( a->a_nvals != a->a_vals ) {
1940                                 ber_memfree( a->a_nvals[0].bv_val );
1941                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1942                         }
1943                         ber_memfree( a->a_vals[0].bv_val );
1944                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1945                 }
1946         }
1947
1948         f.f_choice = LDAP_FILTER_EQUALITY;
1949         f.f_ava = &ava;
1950         ava.aa_desc = slap_schema.si_ad_entryUUID;
1951         ava.aa_value = *syncUUID;
1952
1953         if ( syncuuid_inserted ) {
1954                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1955                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1956         }
1957         op->ors_filter = &f;
1958
1959         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1960         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1961                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1962         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1963         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1964                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1965         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1966         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1967
1968         op->o_tag = LDAP_REQ_SEARCH;
1969         op->ors_scope = LDAP_SCOPE_SUBTREE;
1970         op->ors_deref = LDAP_DEREF_NEVER;
1971
1972         /* get the entry for this UUID */
1973         op->o_req_dn = si->si_base;
1974         op->o_req_ndn = si->si_base;
1975
1976         op->o_time = slap_get_time();
1977         op->ors_tlimit = SLAP_NO_LIMIT;
1978         op->ors_slimit = 1;
1979
1980         op->ors_attrs = slap_anlist_all_attributes;
1981         op->ors_attrsonly = 0;
1982
1983         /* set callback function */
1984         op->o_callback = &cb;
1985         cb.sc_response = dn_callback;
1986         cb.sc_private = &dni;
1987         dni.new_entry = entry;
1988         dni.modlist = modlist;
1989
1990         if ( limits_check( op, &rs_search ) == 0 ) {
1991                 rc = be->be_search( op, &rs_search );
1992                 Debug( LDAP_DEBUG_SYNC,
1993                                 "syncrepl_entry: %s be_search (%d)\n",
1994                                 si->si_ridtxt, rc, 0 );
1995         }
1996
1997         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1998                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1999         }
2000
2001         cb.sc_response = null_callback;
2002         cb.sc_private = si;
2003
2004         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2005                 Debug( LDAP_DEBUG_SYNC,
2006                                 "syncrepl_entry: %s %s\n",
2007                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2008         } else {
2009                 Debug( LDAP_DEBUG_SYNC,
2010                                 "syncrepl_entry: %s %s\n",
2011                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2012         }
2013
2014         assert( BER_BVISNULL( &op->o_csn ) );
2015         if ( syncCSN ) {
2016                 slap_queue_csn( op, syncCSN );
2017         }
2018
2019         slap_op_time( &op->o_time, &op->o_tincr );
2020         switch ( syncstate ) {
2021         case LDAP_SYNC_ADD:
2022         case LDAP_SYNC_MODIFY:
2023                 if ( BER_BVISNULL( &op->o_csn ))
2024                 {
2025
2026                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2027                         if ( a ) {
2028                                 /* FIXME: op->o_csn is assumed to be
2029                                  * on the thread's slab; this needs
2030                                  * to be cleared ASAP.
2031                                  * What happens if already present?
2032                                  */
2033                                 assert( BER_BVISNULL( &op->o_csn ) );
2034                                 op->o_csn = a->a_vals[0];
2035                                 freecsn = 0;
2036                         }
2037                 }
2038 retry_add:;
2039                 if ( BER_BVISNULL( &dni.dn ) ) {
2040
2041                         op->o_req_dn = entry->e_name;
2042                         op->o_req_ndn = entry->e_nname;
2043                         op->o_tag = LDAP_REQ_ADD;
2044                         op->ora_e = entry;
2045                         op->o_bd = si->si_wbe;
2046
2047                         rc = op->o_bd->be_add( op, &rs_add );
2048                         Debug( LDAP_DEBUG_SYNC,
2049                                         "syncrepl_entry: %s be_add (%d)\n",
2050                                         si->si_ridtxt, rc, 0 );
2051                         switch ( rs_add.sr_err ) {
2052                         case LDAP_SUCCESS:
2053                                 if ( op->ora_e == entry ) {
2054                                         be_entry_release_w( op, entry );
2055                                 }
2056                                 entry = NULL;
2057                                 break;
2058
2059                         case LDAP_REFERRAL:
2060                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2061                          * only if the suffix entry is not present */
2062                         case LDAP_NO_SUCH_OBJECT:
2063                                 rc = syncrepl_add_glue( op, entry );
2064                                 entry = NULL;
2065                                 break;
2066
2067                         /* if an entry was added via syncrepl_add_glue(),
2068                          * it likely has no entryUUID, so the previous
2069                          * be_search() doesn't find it.  In this case,
2070                          * give syncrepl a chance to modify it. Also
2071                          * allow for entries that were recreated with the
2072                          * same DN but a different entryUUID.
2073                          */
2074                         case LDAP_ALREADY_EXISTS:
2075                                 if ( retry ) {
2076                                         Operation       op2 = *op;
2077                                         SlapReply       rs2 = { 0 };
2078                                         slap_callback   cb2 = { 0 };
2079
2080                                         op2.o_bd = be;
2081                                         op2.o_tag = LDAP_REQ_SEARCH;
2082                                         op2.o_req_dn = entry->e_name;
2083                                         op2.o_req_ndn = entry->e_nname;
2084                                         op2.ors_scope = LDAP_SCOPE_BASE;
2085                                         op2.ors_deref = LDAP_DEREF_NEVER;
2086                                         op2.ors_attrs = slap_anlist_all_attributes;
2087                                         op2.ors_attrsonly = 0;
2088                                         op2.ors_limit = NULL;
2089                                         op2.ors_slimit = 1;
2090                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2091
2092                                         f.f_choice = LDAP_FILTER_PRESENT;
2093                                         f.f_desc = slap_schema.si_ad_objectClass;
2094                                         op2.ors_filter = &f;
2095                                         op2.ors_filterstr = generic_filterstr;
2096
2097                                         op2.o_callback = &cb2;
2098                                         cb2.sc_response = dn_callback;
2099                                         cb2.sc_private = &dni;
2100
2101                                         rc = be->be_search( &op2, &rs2 );
2102                                         if ( rc ) goto done;
2103
2104                                         retry = 0;
2105                                         slap_op_time( &op->o_time, &op->o_tincr );
2106                                         goto retry_add;
2107                                 }
2108                                 /* FALLTHRU */
2109
2110                         default:
2111                                 Debug( LDAP_DEBUG_ANY,
2112                                         "syncrepl_entry: %s be_add failed (%d)\n",
2113                                         si->si_ridtxt, rs_add.sr_err, 0 );
2114                                 break;
2115                         }
2116                         op->o_bd = be;
2117                         goto done;
2118                 }
2119                 /* FALLTHRU */
2120                 op->o_req_dn = dni.dn;
2121                 op->o_req_ndn = dni.ndn;
2122                 if ( dni.renamed ) {
2123                         struct berval noldp, newp, nnewp;
2124
2125                         op->o_tag = LDAP_REQ_MODRDN;
2126                         dnRdn( &entry->e_name, &op->orr_newrdn );
2127                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2128
2129                         dnParent( &dni.ndn, &noldp );
2130                         dnParent( &entry->e_nname, &nnewp );
2131                         if ( !dn_match( &noldp, &nnewp ) ) {
2132                                 dnParent( &entry->e_name, &newp );
2133                                 op->orr_newSup = &newp;
2134                                 op->orr_nnewSup = &nnewp;
2135                         } else {
2136                                 op->orr_newSup = NULL;
2137                                 op->orr_nnewSup = NULL;
2138                         }
2139                         op->orr_deleteoldrdn = dni.delOldRDN;
2140                         op->orr_modlist = NULL;
2141                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2142                                 goto done;
2143                         }
2144
2145                         /* RDNs must be NUL-terminated for back-ldap */
2146                         noldp = op->orr_newrdn;
2147                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2148                         noldp = op->orr_nnewrdn;
2149                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2150
2151                         /* Setup opattrs too */
2152                         {
2153                                 static AttributeDescription *nullattr = NULL;
2154                                 static AttributeDescription **const opattrs[] = {
2155                                         &slap_schema.si_ad_entryCSN,
2156                                         &slap_schema.si_ad_modifiersName,
2157                                         &slap_schema.si_ad_modifyTimestamp,
2158                                         &nullattr
2159                                 };
2160                                 AttributeDescription *opattr;
2161                                 Modifications *mod, **modtail, **ml;
2162                                 int i;
2163
2164                                 for ( mod = op->orr_modlist;
2165                                         mod->sml_next;
2166                                         mod = mod->sml_next )
2167                                         ;
2168                                 modtail = &mod->sml_next;
2169
2170                                 /* pull mod off incoming modlist, append to orr_modlist */
2171                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2172                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2173                                         {
2174                                                 if ( (*ml)->sml_desc == opattr ) {
2175                                                         mod = *ml;
2176                                                         *ml = mod->sml_next;
2177                                                         mod->sml_next = NULL;
2178                                                         *modtail = mod;
2179                                                         modtail = &mod->sml_next;
2180                                                         break;
2181                                                 }
2182                                         }
2183                                 }
2184                         }
2185                         op->o_bd = si->si_wbe;
2186                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2187                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2188                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2189
2190                         slap_mods_free( op->orr_modlist, 1 );
2191                         Debug( LDAP_DEBUG_SYNC,
2192                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2193                                         si->si_ridtxt, rc, 0 );
2194                         op->o_bd = be;
2195                         goto done;
2196                 }
2197                 if ( dni.mods ) {
2198                         op->o_tag = LDAP_REQ_MODIFY;
2199                         op->orm_modlist = dni.mods;
2200                         op->orm_no_opattrs = 1;
2201                         op->o_bd = si->si_wbe;
2202
2203                         rc = op->o_bd->be_modify( op, &rs_modify );
2204                         slap_mods_free( op->orm_modlist, 1 );
2205                         op->orm_no_opattrs = 0;
2206                         Debug( LDAP_DEBUG_SYNC,
2207                                         "syncrepl_entry: %s be_modify (%d)\n",
2208                                         si->si_ridtxt, rc, 0 );
2209                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2210                                 Debug( LDAP_DEBUG_ANY,
2211                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2212                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2213                         }
2214                         op->o_bd = be;
2215                 } else {
2216                         Debug( LDAP_DEBUG_SYNC,
2217                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2218                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2219                 }
2220                 goto done;
2221         case LDAP_SYNC_DELETE :
2222                 if ( !BER_BVISNULL( &dni.dn ) ) {
2223                         op->o_req_dn = dni.dn;
2224                         op->o_req_ndn = dni.ndn;
2225                         op->o_tag = LDAP_REQ_DELETE;
2226                         op->o_bd = si->si_wbe;
2227                         rc = op->o_bd->be_delete( op, &rs_delete );
2228                         Debug( LDAP_DEBUG_SYNC,
2229                                         "syncrepl_entry: %s be_delete (%d)\n",
2230                                         si->si_ridtxt, rc, 0 );
2231
2232                         while ( rs_delete.sr_err == LDAP_SUCCESS
2233                                 && op->o_delete_glue_parent ) {
2234                                 op->o_delete_glue_parent = 0;
2235                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2236                                         slap_callback cb = { NULL };
2237                                         cb.sc_response = slap_null_cb;
2238                                         dnParent( &op->o_req_ndn, &pdn );
2239                                         op->o_req_dn = pdn;
2240                                         op->o_req_ndn = pdn;
2241                                         op->o_callback = &cb;
2242                                         op->o_bd->be_delete( op, &rs_delete );
2243                                 } else {
2244                                         break;
2245                                 }
2246                         }
2247                         op->o_bd = be;
2248                 }
2249                 goto done;
2250
2251         default :
2252                 Debug( LDAP_DEBUG_ANY,
2253                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2254                 goto done;
2255         }
2256
2257 done:
2258         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2259                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2260                 BER_BVZERO( &syncUUID_strrep );
2261         }
2262         if ( !BER_BVISNULL( &dni.ndn ) ) {
2263                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2264         }
2265         if ( !BER_BVISNULL( &dni.dn ) ) {
2266                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2267         }
2268         if ( entry ) {
2269                 entry_free( entry );
2270         }
2271         if ( syncCSN ) {
2272                 slap_graduate_commit_csn( op );
2273         }
2274         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2275                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2276         }
2277         BER_BVZERO( &op->o_csn );
2278         return rc;
2279 }
2280
2281 static struct berval gcbva[] = {
2282         BER_BVC("top"),
2283         BER_BVC("glue"),
2284         BER_BVNULL
2285 };
2286
2287 #define NP_DELETE_ONE   2
2288
2289 static void
2290 syncrepl_del_nonpresent(
2291         Operation *op,
2292         syncinfo_t *si,
2293         BerVarray uuids,
2294         struct berval *cookiecsn )
2295 {
2296         Backend* be = op->o_bd;
2297         slap_callback   cb = { NULL };
2298         SlapReply       rs_search = {REP_RESULT};
2299         SlapReply       rs_delete = {REP_RESULT};
2300         SlapReply       rs_modify = {REP_RESULT};
2301         struct nonpresent_entry *np_list, *np_prev;
2302         int rc;
2303         AttributeName   an[2];
2304
2305         struct berval pdn = BER_BVNULL;
2306         struct berval csn;
2307
2308         op->o_req_dn = si->si_base;
2309         op->o_req_ndn = si->si_base;
2310
2311         cb.sc_response = nonpresent_callback;
2312         cb.sc_private = si;
2313
2314         op->o_callback = &cb;
2315         op->o_tag = LDAP_REQ_SEARCH;
2316         op->ors_scope = si->si_scope;
2317         op->ors_deref = LDAP_DEREF_NEVER;
2318         op->o_time = slap_get_time();
2319         op->ors_tlimit = SLAP_NO_LIMIT;
2320
2321
2322         if ( uuids ) {
2323                 Filter uf;
2324                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2325                 int i;
2326
2327                 op->ors_attrsonly = 1;
2328                 op->ors_attrs = slap_anlist_no_attrs;
2329                 op->ors_limit = NULL;
2330                 op->ors_filter = &uf;
2331
2332                 uf.f_ava = &eq;
2333                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2334                 uf.f_next = NULL;
2335                 uf.f_choice = LDAP_FILTER_EQUALITY;
2336                 si->si_refreshDelete |= NP_DELETE_ONE;
2337
2338                 for (i=0; uuids[i].bv_val; i++) {
2339                         op->ors_slimit = 1;
2340                         uf.f_av_value = uuids[i];
2341                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2342                         rc = be->be_search( op, &rs_search );
2343                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2344                 }
2345                 si->si_refreshDelete ^= NP_DELETE_ONE;
2346         } else {
2347                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2348                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2349                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2350                 op->ors_attrs = an;
2351                 op->ors_slimit = SLAP_NO_LIMIT;
2352                 op->ors_attrsonly = 0;
2353                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2354                 op->ors_filterstr = si->si_filterstr;
2355                 op->o_nocaching = 1;
2356
2357                 if ( limits_check( op, &rs_search ) == 0 ) {
2358                         rc = be->be_search( op, &rs_search );
2359                 }
2360                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2361         }
2362
2363         op->o_nocaching = 0;
2364
2365         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2366
2367                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2368                         csn = *cookiecsn;
2369                 } else {
2370                         csn = si->si_syncCookie.ctxcsn[0];
2371                 }
2372
2373                 op->o_bd = si->si_wbe;
2374                 slap_queue_csn( op, &csn );
2375
2376                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2377                 while ( np_list != NULL ) {
2378                         LDAP_LIST_REMOVE( np_list, npe_link );
2379                         np_prev = np_list;
2380                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2381                         op->o_tag = LDAP_REQ_DELETE;
2382                         op->o_callback = &cb;
2383                         cb.sc_response = null_callback;
2384                         cb.sc_private = si;
2385                         op->o_req_dn = *np_prev->npe_name;
2386                         op->o_req_ndn = *np_prev->npe_nname;
2387                         rc = op->o_bd->be_delete( op, &rs_delete );
2388                         Debug( LDAP_DEBUG_SYNC,
2389                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2390                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2391
2392                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2393                                 Modifications mod1, mod2;
2394                                 mod1.sml_op = LDAP_MOD_REPLACE;
2395                                 mod1.sml_flags = 0;
2396                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2397                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2398                                 mod1.sml_numvals = 2;
2399                                 mod1.sml_values = &gcbva[0];
2400                                 mod1.sml_nvalues = NULL;
2401                                 mod1.sml_next = &mod2;
2402
2403                                 mod2.sml_op = LDAP_MOD_REPLACE;
2404                                 mod2.sml_flags = 0;
2405                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2406                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2407                                 mod2.sml_numvals = 1;
2408                                 mod2.sml_values = &gcbva[1];
2409                                 mod2.sml_nvalues = NULL;
2410                                 mod2.sml_next = NULL;
2411
2412                                 op->o_tag = LDAP_REQ_MODIFY;
2413                                 op->orm_modlist = &mod1;
2414
2415                                 rc = op->o_bd->be_modify( op, &rs_modify );
2416                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2417                         }
2418
2419                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2420                                         op->o_delete_glue_parent ) {
2421                                 op->o_delete_glue_parent = 0;
2422                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2423                                         slap_callback cb = { NULL };
2424                                         cb.sc_response = slap_null_cb;
2425                                         dnParent( &op->o_req_ndn, &pdn );
2426                                         op->o_req_dn = pdn;
2427                                         op->o_req_ndn = pdn;
2428                                         op->o_callback = &cb;
2429                                         /* give it a root privil ? */
2430                                         op->o_bd->be_delete( op, &rs_delete );
2431                                 } else {
2432                                         break;
2433                                 }
2434                         }
2435
2436                         op->o_delete_glue_parent = 0;
2437
2438                         ber_bvfree( np_prev->npe_name );
2439                         ber_bvfree( np_prev->npe_nname );
2440                         ch_free( np_prev );
2441
2442                         if ( slapd_shutdown ) {
2443                                 break;
2444                         }
2445                 }
2446
2447                 slap_graduate_commit_csn( op );
2448                 op->o_bd = be;
2449
2450                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2451                 BER_BVZERO( &op->o_csn );
2452         }
2453
2454         return;
2455 }
2456
2457 int
2458 syncrepl_add_glue(
2459         Operation* op,
2460         Entry *e )
2461 {
2462         Backend *be = op->o_bd;
2463         slap_callback cb = { NULL };
2464         Attribute       *a;
2465         int     rc;
2466         int suffrdns;
2467         int i;
2468         struct berval dn = BER_BVNULL;
2469         struct berval ndn = BER_BVNULL;
2470         Entry   *glue;
2471         SlapReply       rs_add = {REP_RESULT};
2472         struct berval   ptr, nptr;
2473         char            *comma;
2474
2475         op->o_tag = LDAP_REQ_ADD;
2476         op->o_callback = &cb;
2477         cb.sc_response = null_callback;
2478         cb.sc_private = NULL;
2479
2480         dn = e->e_name;
2481         ndn = e->e_nname;
2482
2483         /* count RDNs in suffix */
2484         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2485                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2486                         comma++;
2487                         ptr.bv_len -= comma - ptr.bv_val;
2488                         ptr.bv_val = comma;
2489                         i++;
2490                 }
2491                 suffrdns = i;
2492         } else {
2493                 /* suffix is "" */
2494                 suffrdns = 0;
2495         }
2496
2497         /* Start with BE suffix */
2498         ptr = dn;
2499         for ( i = 0; i < suffrdns; i++ ) {
2500                 comma = ber_bvrchr( &ptr, ',' );
2501                 if ( comma != NULL ) {
2502                         ptr.bv_len = comma - ptr.bv_val;
2503                 } else {
2504                         ptr.bv_len = 0;
2505                         break;
2506                 }
2507         }
2508
2509         if ( !BER_BVISEMPTY( &ptr ) ) {
2510                 dn.bv_len -= ptr.bv_len + 1;
2511                 dn.bv_val += ptr.bv_len + 1;
2512         }
2513
2514         /* the normalizedDNs are always the same length, no counting
2515          * required.
2516          */
2517         nptr = ndn;
2518         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2519                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2520                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2521
2522                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2523
2524         } else {
2525                 nptr.bv_len = 0;
2526         }
2527
2528         while ( ndn.bv_val > e->e_nname.bv_val ) {
2529                 glue = entry_alloc();
2530                 ber_dupbv( &glue->e_name, &dn );
2531                 ber_dupbv( &glue->e_nname, &ndn );
2532
2533                 a = attr_alloc( slap_schema.si_ad_objectClass );
2534
2535                 a->a_numvals = 2;
2536                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2537                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2538                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2539                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2540
2541                 a->a_nvals = a->a_vals;
2542
2543                 a->a_next = glue->e_attrs;
2544                 glue->e_attrs = a;
2545
2546                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2547
2548                 a->a_numvals = 1;
2549                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2550                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2551                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2552
2553                 a->a_nvals = a->a_vals;
2554
2555                 a->a_next = glue->e_attrs;
2556                 glue->e_attrs = a;
2557
2558                 op->o_req_dn = glue->e_name;
2559                 op->o_req_ndn = glue->e_nname;
2560                 op->ora_e = glue;
2561                 rc = be->be_add ( op, &rs_add );
2562                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2563                         if ( op->ora_e == glue )
2564                                 be_entry_release_w( op, glue );
2565                 } else {
2566                 /* incl. ALREADY EXIST */
2567                         entry_free( glue );
2568                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2569                                 entry_free( e );
2570                                 return rc;
2571                         }
2572                 }
2573
2574                 /* Move to next child */
2575                 comma = ber_bvrchr( &ptr, ',' );
2576                 if ( comma == NULL ) {
2577                         break;
2578                 }
2579                 ptr.bv_len = comma - ptr.bv_val;
2580
2581                 dn.bv_val = ++comma;
2582                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2583
2584                 comma = ber_bvrchr( &nptr, ',' );
2585                 assert( comma != NULL );
2586                 nptr.bv_len = comma - nptr.bv_val;
2587
2588                 ndn.bv_val = ++comma;
2589                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2590         }
2591
2592         op->o_req_dn = e->e_name;
2593         op->o_req_ndn = e->e_nname;
2594         op->ora_e = e;
2595         rc = be->be_add ( op, &rs_add );
2596         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2597                 if ( op->ora_e == e )
2598                         be_entry_release_w( op, e );
2599         } else {
2600                 entry_free( e );
2601         }
2602
2603         return rc;
2604 }
2605
2606 static int
2607 syncrepl_updateCookie(
2608         syncinfo_t *si,
2609         Operation *op,
2610         struct berval *pdn,
2611         struct sync_cookie *syncCookie )
2612 {
2613         Backend *be = op->o_bd;
2614         Modifications mod[2];
2615         struct berval first = BER_BVNULL;
2616
2617         int rc, i, j, len;
2618
2619         slap_callback cb = { NULL };
2620         SlapReply       rs_modify = {REP_RESULT};
2621
2622         mod[0].sml_op = LDAP_MOD_DELETE;
2623         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2624         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2625         mod[0].sml_values = NULL;
2626         mod[0].sml_nvalues = NULL;
2627         mod[0].sml_numvals = 0;
2628         mod[0].sml_next = &mod[1];
2629
2630         mod[1].sml_op = LDAP_MOD_ADD;
2631         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2632         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2633         mod[1].sml_values = NULL;
2634         mod[1].sml_nvalues = NULL;
2635         mod[1].sml_numvals = 0;
2636         mod[1].sml_next = NULL;
2637
2638         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2639
2640         for ( i=0; i<syncCookie->numcsns; i++ ) {
2641                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2642                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2643                                 continue;
2644                         len = syncCookie->ctxcsn[i].bv_len;
2645                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2646                                 len = si->si_cookieState->cs_vals[j].bv_len;
2647                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2648                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2649                                 ber_bvarray_add_x( &mod[0].sml_values,
2650                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2651                                 mod[0].sml_numvals++;
2652                                 ber_bvarray_add_x( &mod[1].sml_values,
2653                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2654                                 mod[1].sml_numvals++;
2655                                 if ( BER_BVISNULL( &first ))
2656                                         first = syncCookie->ctxcsn[i];
2657                         }
2658                         break;
2659                 }
2660                 /* there was no match for this SID, it's a new CSN */
2661                 if ( j == si->si_cookieState->cs_num ) {
2662                         ber_bvarray_add_x( &mod[1].sml_values,
2663                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2664                         mod[1].sml_numvals++;
2665                         if ( BER_BVISNULL( &first ))
2666                                 first = syncCookie->ctxcsn[i];
2667                 }
2668         }
2669         /* Should never happen, ITS#5065 */
2670         if ( BER_BVISNULL( &first )) {
2671                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2672                 return 0;
2673         }
2674         op->o_bd = si->si_wbe;
2675         slap_queue_csn( op, &first );
2676
2677         op->o_tag = LDAP_REQ_MODIFY;
2678
2679         cb.sc_response = null_callback;
2680         cb.sc_private = si;
2681
2682         op->o_callback = &cb;
2683         op->o_req_dn = op->o_bd->be_suffix[0];
2684         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2685
2686         /* update contextCSN */
2687         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2688
2689         if ( mod[0].sml_values )
2690                 op->orm_modlist = mod;
2691         else
2692                 op->orm_modlist = &mod[1];
2693
2694         op->orm_no_opattrs = 1;
2695         rc = op->o_bd->be_modify( op, &rs_modify );
2696         op->orm_no_opattrs = 0;
2697         op->o_msgid = 0;
2698
2699         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2700                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2701                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2702                 /* If we replaced any old values */
2703                 if ( mod[0].sml_values ) {
2704                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2705                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2706                                         if ( mod[0].sml_values[i].bv_val !=
2707                                                 si->si_cookieState->cs_vals[j].bv_val )
2708                                                 continue;
2709                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2710                                                 &mod[1].sml_values[i] );
2711                                         break;
2712                                 }
2713                         }
2714                 } else {
2715                         /* Else we just added */
2716                         si->si_cookieState->cs_num += syncCookie->numcsns;
2717                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2718                         free( si->si_cookieState->cs_sids );
2719                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2720                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2721                 }
2722
2723                 si->si_cookieState->cs_age++;
2724                 si->si_cookieAge = si->si_cookieState->cs_age;
2725         } else {
2726                 Debug( LDAP_DEBUG_ANY,
2727                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2728                         si->si_ridtxt, rs_modify.sr_err, 0 );
2729         }
2730         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2731
2732         op->o_bd = be;
2733         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2734         BER_BVZERO( &op->o_csn );
2735         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2736         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2737         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2738
2739         return rc;
2740 }
2741
2742 static void
2743 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2744         Modifications ***mret, Modifications ***mcur )
2745 {
2746         int i, j;
2747         Modifications *mod, **modtail;
2748
2749         modtail = *mret;
2750
2751         if ( old ) {
2752                 int n, o, nn, no;
2753                 struct berval **adds, **dels;
2754                 /* count old and new */
2755                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2756                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2757
2758                 /* there MUST be both old and new values */
2759                 assert( o != 0 );
2760                 assert( n != 0 );
2761                 j = 0;
2762
2763                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2764                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2765
2766                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2767                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2768
2769                 nn = n; no = o;
2770
2771                 for ( i=0; i<o; i++ ) {
2772                         for ( j=0; j<n; j++ ) {
2773                                 if ( !adds[j] )
2774                                         continue;
2775                                 if ( bvmatch( dels[i], adds[j] ) ) {
2776                                         no--;
2777                                         nn--;
2778                                         adds[j] = NULL;
2779                                         dels[i] = NULL;
2780                                         break;
2781                                 }
2782                         }
2783                 }
2784
2785                 i = j;
2786                 /* all old values were deleted, just use the replace op */
2787                 if ( no == o ) {
2788                         i = j-1;
2789                 } else if ( no ) {
2790                 /* delete some values */
2791                         mod = ch_malloc( sizeof( Modifications ) );
2792                         mod->sml_op = LDAP_MOD_DELETE;
2793                         mod->sml_flags = 0;
2794                         mod->sml_desc = old->a_desc;
2795                         mod->sml_type = mod->sml_desc->ad_cname;
2796                         mod->sml_numvals = no;
2797                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2798                         if ( old->a_vals != old->a_nvals ) {
2799                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2800                         } else {
2801                                 mod->sml_nvalues = NULL;
2802                         }
2803                         j = 0;
2804                         for ( i = 0; i < o; i++ ) {
2805                                 if ( !dels[i] ) continue;
2806                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2807                                 if ( mod->sml_nvalues ) {
2808                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2809                                 }
2810                                 j++;
2811                         }
2812                         BER_BVZERO( &mod->sml_values[j] );
2813                         if ( mod->sml_nvalues ) {
2814                                 BER_BVZERO( &mod->sml_nvalues[j] );
2815                         }
2816                         *modtail = mod;
2817                         modtail = &mod->sml_next;
2818                         i = j;
2819                 }
2820                 op->o_tmpfree( dels, op->o_tmpmemctx );
2821                 /* some values were added */
2822                 if ( nn && no < o ) {
2823                         mod = ch_malloc( sizeof( Modifications ) );
2824                         mod->sml_op = LDAP_MOD_ADD;
2825                         mod->sml_flags = 0;
2826                         mod->sml_desc = old->a_desc;
2827                         mod->sml_type = mod->sml_desc->ad_cname;
2828                         mod->sml_numvals = nn;
2829                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2830                         if ( old->a_vals != old->a_nvals ) {
2831                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2832                         } else {
2833                                 mod->sml_nvalues = NULL;
2834                         }
2835                         j = 0;
2836                         for ( i = 0; i < n; i++ ) {
2837                                 if ( !adds[i] ) continue;
2838                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2839                                 if ( mod->sml_nvalues ) {
2840                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2841                                 }
2842                                 j++;
2843                         }
2844                         BER_BVZERO( &mod->sml_values[j] );
2845                         if ( mod->sml_nvalues ) {
2846                                 BER_BVZERO( &mod->sml_nvalues[j] );
2847                         }
2848                         *modtail = mod;
2849                         modtail = &mod->sml_next;
2850                         i = j;
2851                 }
2852                 op->o_tmpfree( adds, op->o_tmpmemctx );
2853         } else {
2854                 /* new attr, just use the new mod */
2855                 i = 0;
2856                 j = 1;
2857         }
2858         /* advance to next element */
2859         mod = **mcur;
2860         if ( mod ) {
2861                 if ( i != j ) {
2862                         **mcur = mod->sml_next;
2863                         *modtail = mod;
2864                         modtail = &mod->sml_next;
2865                 } else {
2866                         *mcur = &mod->sml_next;
2867                 }
2868         }
2869         *mret = modtail;
2870 }
2871
2872 static int
2873 dn_callback(
2874         Operation*      op,
2875         SlapReply*      rs )
2876 {
2877         dninfo *dni = op->o_callback->sc_private;
2878
2879         if ( rs->sr_type == REP_SEARCH ) {
2880                 if ( !BER_BVISNULL( &dni->dn ) ) {
2881                         Debug( LDAP_DEBUG_ANY,
2882                                 "dn_callback : consistency error - "
2883                                 "entryUUID is not unique\n", 0, 0, 0 );
2884                 } else {
2885                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2886                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2887                         /* If there is a new entry, see if it differs from the old.
2888                          * We compare the non-normalized values so that cosmetic changes
2889                          * in the provider are always propagated.
2890                          */
2891                         if ( dni->new_entry ) {
2892                                 Modifications **modtail, **ml;
2893                                 Attribute *old, *new;
2894                                 int is_ctx;
2895
2896                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2897                                         &op->o_bd->be_nsuffix[0] );
2898
2899                                 /* Did the DN change?
2900                                  */
2901                                 if ( !dn_match( &rs->sr_entry->e_name,
2902                                                 &dni->new_entry->e_name ) )
2903                                 {
2904                                         struct berval oldRDN, oldVal;
2905                                         AttributeDescription *ad = NULL;
2906                                         Attribute *a;
2907
2908                                         dni->renamed = 1;
2909                                         /* See if the oldRDN was deleted */
2910                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2911                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2912                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2913                                                 oldRDN.bv_val );
2914                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2915                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2916                                         a = attr_find( dni->new_entry->e_attrs, ad );
2917                                         if ( !a || attr_valfind( a,
2918                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2919                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2920                                                 SLAP_MR_VALUE_OF_SYNTAX,
2921                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
2922                                         {
2923                                                 dni->delOldRDN = 1;
2924                                         }
2925                                         /* OK, this was just a modDN, we're done */
2926                                         return LDAP_SUCCESS;
2927                                 }
2928
2929                                 modtail = &dni->mods;
2930                                 ml = dni->modlist;
2931
2932                                 /* Make sure new entry is actually newer than old entry */
2933                                 old = attr_find( rs->sr_entry->e_attrs,
2934                                         slap_schema.si_ad_entryCSN );
2935                                 new = attr_find( dni->new_entry->e_attrs,
2936                                         slap_schema.si_ad_entryCSN );
2937                                 if ( new && old ) {
2938                                         int rc, len = old->a_vals[0].bv_len;
2939                                         if ( len > new->a_vals[0].bv_len )
2940                                                 len = new->a_vals[0].bv_len;
2941                                         rc = memcmp( old->a_vals[0].bv_val,
2942                                                 new->a_vals[0].bv_val, len );
2943                                         if ( rc > 0 ) {
2944                                                 Debug( LDAP_DEBUG_SYNC,
2945                                                         "dn_callback : new entry is older than ours "
2946                                                         "%s ours %s, new %s\n",
2947                                                         rs->sr_entry->e_name.bv_val,
2948                                                         old->a_vals[0].bv_val,
2949                                                         new->a_vals[0].bv_val );
2950                                                 return LDAP_SUCCESS;
2951                                         } else if ( rc == 0 ) {
2952                                                 Debug( LDAP_DEBUG_SYNC,
2953                                                         "dn_callback : entries have identical CSN "
2954                                                         "%s %s\n",
2955                                                         rs->sr_entry->e_name.bv_val,
2956                                                         old->a_vals[0].bv_val, 0 );
2957                                                 return LDAP_SUCCESS;
2958                                         }
2959                                 }
2960
2961                                 /* We assume that attributes are saved in the same order
2962                                  * in the remote and local databases. So if we walk through
2963                                  * the attributeDescriptions one by one they should match in
2964                                  * lock step. If not, look for an add or delete.
2965                                  */
2966                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2967                                                 old && new; )
2968                                 {
2969                                         /* If we've seen this before, use its mod now */
2970                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2971                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2972                                                 new = new->a_next;
2973                                                 continue;
2974                                         }
2975                                         /* Skip contextCSN */
2976                                         if ( is_ctx && old->a_desc ==
2977                                                 slap_schema.si_ad_contextCSN ) {
2978                                                 old = old->a_next;
2979                                                 continue;
2980                                         }
2981
2982                                         if ( old->a_desc != new->a_desc ) {
2983                                                 Modifications *mod;
2984                                                 Attribute *tmp;
2985
2986                                                 /* If it's just been re-added later,
2987                                                  * remember that we've seen it.
2988                                                  */
2989                                                 tmp = attr_find( new, old->a_desc );
2990                                                 if ( tmp ) {
2991                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2992                                                 } else {
2993                                                         /* If it's a new attribute, pull it in.
2994                                                          */
2995                                                         tmp = attr_find( old, new->a_desc );
2996                                                         if ( !tmp ) {
2997                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2998                                                                 new = new->a_next;
2999                                                                 continue;
3000                                                         }
3001                                                         /* Delete old attr */
3002                                                         mod = ch_malloc( sizeof( Modifications ) );
3003                                                         mod->sml_op = LDAP_MOD_DELETE;
3004                                                         mod->sml_flags = 0;
3005                                                         mod->sml_desc = old->a_desc;
3006                                                         mod->sml_type = mod->sml_desc->ad_cname;
3007                                                         mod->sml_numvals = 0;
3008                                                         mod->sml_values = NULL;
3009                                                         mod->sml_nvalues = NULL;
3010                                                         *modtail = mod;
3011                                                         modtail = &mod->sml_next;
3012                                                 }
3013                                                 old = old->a_next;
3014                                                 continue;
3015                                         }
3016                                         /* kludge - always update modifiersName so that it
3017                                          * stays co-located with the other mod opattrs. But only
3018                                          * if we know there are other valid mods.
3019                                          */
3020                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3021                                                 dni->mods )
3022                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3023                                         else
3024                                                 attr_cmp( op, old, new, &modtail, &ml );
3025                                         new = new->a_next;
3026                                         old = old->a_next;
3027                                 }
3028                                 *modtail = *ml;
3029                                 *ml = NULL;
3030                         }
3031                 }
3032         } else if ( rs->sr_type == REP_RESULT ) {
3033                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3034                         Debug( LDAP_DEBUG_ANY,
3035                                 "dn_callback : consistency error - "
3036                                 "entryUUID is not unique\n", 0, 0, 0 );
3037                 }
3038         }
3039
3040         return LDAP_SUCCESS;
3041 }
3042
3043 static int
3044 nonpresent_callback(
3045         Operation*      op,
3046         SlapReply*      rs )
3047 {
3048         syncinfo_t *si = op->o_callback->sc_private;
3049         Attribute *a;
3050         int count = 0;
3051         struct berval* present_uuid = NULL;
3052         struct nonpresent_entry *np_entry;
3053
3054         if ( rs->sr_type == REP_RESULT ) {
3055                 count = avl_free( si->si_presentlist, ch_free );
3056                 si->si_presentlist = NULL;
3057
3058         } else if ( rs->sr_type == REP_SEARCH ) {
3059                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3060                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3061
3062                         if ( a ) {
3063                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3064                                         syncuuid_cmp );
3065                         }
3066
3067                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3068                                 char buf[sizeof("rid=999 not")];
3069
3070                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3071                                         present_uuid ? "got" : "not" );
3072
3073                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3074                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3075                         }
3076
3077                         if ( a == NULL ) return 0;
3078                 }
3079
3080                 if ( present_uuid == NULL ) {
3081                         np_entry = (struct nonpresent_entry *)
3082                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3083                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3084                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3085                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3086
3087                 } else {
3088                         avl_delete( &si->si_presentlist,
3089                                 &a->a_nvals[0], syncuuid_cmp );
3090                         ch_free( present_uuid );
3091                 }
3092         }
3093         return LDAP_SUCCESS;
3094 }
3095
3096 static int
3097 null_callback(
3098         Operation*      op,
3099         SlapReply*      rs )
3100 {
3101         if ( rs->sr_err != LDAP_SUCCESS &&
3102                 rs->sr_err != LDAP_REFERRAL &&
3103                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3104                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3105                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3106         {
3107                 Debug( LDAP_DEBUG_ANY,
3108                         "null_callback : error code 0x%x\n",
3109                         rs->sr_err, 0, 0 );
3110         }
3111         return LDAP_SUCCESS;
3112 }
3113
3114 static struct berval *
3115 slap_uuidstr_from_normalized(
3116         struct berval* uuidstr,
3117         struct berval* normalized,
3118         void *ctx )
3119 {
3120 #if 0
3121         struct berval *new;
3122         unsigned char nibble;
3123         int i, d = 0;
3124
3125         if ( normalized == NULL ) return NULL;
3126         if ( normalized->bv_len != 16 ) return NULL;
3127
3128         if ( uuidstr ) {
3129                 new = uuidstr;
3130         } else {
3131                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3132                 if ( new == NULL ) {
3133                         return NULL;
3134                 }
3135         }
3136
3137         new->bv_len = 36;
3138
3139         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3140                 if ( new != uuidstr ) {
3141                         slap_sl_free( new, ctx );
3142                 }
3143                 return NULL;
3144         }
3145
3146         for ( i = 0; i < 16; i++ ) {
3147                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3148                         new->bv_val[(i<<1)+d] = '-';
3149                         d += 1;
3150                 }
3151
3152                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3153                 if ( nibble < 10 ) {
3154                         new->bv_val[(i<<1)+d] = nibble + '0';
3155                 } else {
3156                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3157                 }
3158
3159                 nibble = (normalized->bv_val[i]) & 0xF;
3160                 if ( nibble < 10 ) {
3161                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3162                 } else {
3163                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3164                 }
3165         }
3166
3167         new->bv_val[new->bv_len] = '\0';
3168         return new;
3169 #endif
3170
3171         struct berval   *new;
3172         int             rc = 0;
3173
3174         if ( normalized == NULL ) return NULL;
3175         if ( normalized->bv_len != 16 ) return NULL;
3176
3177         if ( uuidstr ) {
3178                 new = uuidstr;
3179
3180         } else {
3181                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3182                 if ( new == NULL ) {
3183                         return NULL;
3184                 }
3185         }
3186
3187         new->bv_len = 36;
3188
3189         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3190                 rc = 1;
3191                 goto done;
3192         }
3193
3194         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3195                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3196
3197 done:;
3198         if ( rc == -1 ) {
3199                 if ( new != NULL ) {
3200                         if ( new->bv_val != NULL ) {
3201                                 slap_sl_free( new->bv_val, ctx );
3202                         }
3203
3204                         if ( new != uuidstr ) {
3205                                 slap_sl_free( new, ctx );
3206                         }
3207                 }
3208                 new = NULL;
3209
3210         } else {
3211                 new->bv_len = rc;
3212         }
3213
3214         return new;
3215 }
3216
3217 static int
3218 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3219 {
3220         const struct berval *uuid1 = v_uuid1;
3221         const struct berval *uuid2 = v_uuid2;
3222         int rc = uuid1->bv_len - uuid2->bv_len;
3223         if ( rc ) return rc;
3224         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3225 }
3226
3227 void
3228 syncinfo_free( syncinfo_t *sie, int free_all )
3229 {
3230         syncinfo_t *si_next;
3231
3232         if ( free_all && sie->si_cookieState ) {
3233                 ch_free( sie->si_cookieState->cs_sids );
3234                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3235                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3236                 ch_free( sie->si_cookieState );
3237         }
3238         do {
3239                 si_next = sie->si_next;
3240
3241                 if ( sie->si_ld ) {
3242                         if ( sie->si_conn ) {
3243                                 connection_client_stop( sie->si_conn );
3244                                 sie->si_conn = NULL;
3245                         }
3246                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3247                 }
3248
3249                 /* re-fetch it, in case it was already removed */
3250                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3251                 if ( sie->si_re ) {
3252                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3253                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3254                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3255                 }
3256
3257                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3258
3259                 bindconf_free( &sie->si_bindconf );
3260
3261                 if ( sie->si_filterstr.bv_val ) {
3262                         ch_free( sie->si_filterstr.bv_val );
3263                 }
3264                 if ( sie->si_logfilterstr.bv_val ) {
3265                         ch_free( sie->si_logfilterstr.bv_val );
3266                 }
3267                 if ( sie->si_base.bv_val ) {
3268                         ch_free( sie->si_base.bv_val );
3269                 }
3270                 if ( sie->si_logbase.bv_val ) {
3271                         ch_free( sie->si_logbase.bv_val );
3272                 }
3273                 if ( sie->si_attrs ) {
3274                         int i = 0;
3275                         while ( sie->si_attrs[i] != NULL ) {
3276                                 ch_free( sie->si_attrs[i] );
3277                                 i++;
3278                         }
3279                         ch_free( sie->si_attrs );
3280                 }
3281                 if ( sie->si_exattrs ) {
3282                         int i = 0;
3283                         while ( sie->si_exattrs[i] != NULL ) {
3284                                 ch_free( sie->si_exattrs[i] );
3285                                 i++;
3286                         }
3287                         ch_free( sie->si_exattrs );
3288                 }
3289                 if ( sie->si_anlist ) {
3290                         int i = 0;
3291                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3292                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3293                                 i++;
3294                         }
3295                         ch_free( sie->si_anlist );
3296                 }
3297                 if ( sie->si_exanlist ) {
3298                         int i = 0;
3299                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3300                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3301                                 i++;
3302                         }
3303                         ch_free( sie->si_exanlist );
3304                 }
3305                 if ( sie->si_retryinterval ) {
3306                         ch_free( sie->si_retryinterval );
3307                 }
3308                 if ( sie->si_retrynum ) {
3309                         ch_free( sie->si_retrynum );
3310                 }
3311                 if ( sie->si_retrynum_init ) {
3312                         ch_free( sie->si_retrynum_init );
3313                 }
3314                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3315                 if ( sie->si_presentlist ) {
3316                     avl_free( sie->si_presentlist, ch_free );
3317                 }
3318                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3319                         struct nonpresent_entry* npe;
3320                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3321                         LDAP_LIST_REMOVE( npe, npe_link );
3322                         if ( npe->npe_name ) {
3323                                 if ( npe->npe_name->bv_val ) {
3324                                         ch_free( npe->npe_name->bv_val );
3325                                 }
3326                                 ch_free( npe->npe_name );
3327                         }
3328                         if ( npe->npe_nname ) {
3329                                 if ( npe->npe_nname->bv_val ) {
3330                                         ch_free( npe->npe_nname->bv_val );
3331                                 }
3332                                 ch_free( npe->npe_nname );
3333                         }
3334                         ch_free( npe );
3335                 }
3336                 ch_free( sie );
3337                 sie = si_next;
3338         } while ( free_all && si_next );
3339 }
3340
3341
3342
3343 /* NOTE: used & documented in slapd.conf(5) */
3344 #define IDSTR                   "rid"
3345 #define PROVIDERSTR             "provider"
3346 #define SCHEMASTR               "schemachecking"
3347 #define FILTERSTR               "filter"
3348 #define SEARCHBASESTR           "searchbase"
3349 #define SCOPESTR                "scope"
3350 #define ATTRSONLYSTR            "attrsonly"
3351 #define ATTRSSTR                "attrs"
3352 #define TYPESTR                 "type"
3353 #define INTERVALSTR             "interval"
3354 #define RETRYSTR                "retry"
3355 #define SLIMITSTR               "sizelimit"
3356 #define TLIMITSTR               "timelimit"
3357 #define SYNCDATASTR             "syncdata"
3358 #define LOGBASESTR              "logbase"
3359 #define LOGFILTERSTR    "logfilter"
3360
3361 /* FIXME: undocumented */
3362 #define EXATTRSSTR              "exattrs"
3363 #define MANAGEDSAITSTR          "manageDSAit"
3364
3365 /* mandatory */
3366 #define GOT_ID                  0x0001
3367 #define GOT_PROVIDER    0x0002
3368 #define GOT_BASE                0x0004
3369
3370 /* check */
3371 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3372
3373 static struct {
3374         struct berval key;
3375         int val;
3376 } scopes[] = {
3377         { BER_BVC("base"), LDAP_SCOPE_BASE },
3378         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3379         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3380         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3381         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3382         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3383         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3384         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3385         { BER_BVNULL, 0 }
3386 };
3387
3388 static slap_verbmasks datamodes[] = {
3389         { BER_BVC("default"), SYNCDATA_DEFAULT },
3390         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3391         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3392         { BER_BVNULL, 0 }
3393 };
3394
3395 static int
3396 parse_syncrepl_line(
3397         ConfigArgs      *c,
3398         syncinfo_t      *si )
3399 {
3400         int     gots = 0;
3401         int     i;
3402         char    *val;
3403
3404         for ( i = 1; i < c->argc; i++ ) {
3405                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3406                                         STRLENOF( IDSTR "=" ) ) )
3407                 {
3408                         int tmp;
3409                         /* '\0' string terminator accounts for '=' */
3410                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3411                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3412                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3413                                         "Error: parse_syncrepl_line: "
3414                                         "unable to parse syncrepl id \"%s\"", val );
3415                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3416                                 return -1;
3417                         }
3418                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3419                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3420                                         "Error: parse_syncrepl_line: "
3421                                         "syncrepl id %d is out of range [0..4095]", tmp );
3422                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3423                                 return -1;
3424                         }
3425                         si->si_rid = tmp;
3426                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3427                         gots |= GOT_ID;
3428                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3429                                         STRLENOF( PROVIDERSTR "=" ) ) )
3430                 {
3431                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3432                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3433                         gots |= GOT_PROVIDER;
3434                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3435                                         STRLENOF( SCHEMASTR "=" ) ) )
3436                 {
3437                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3438                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3439                                 si->si_schemachecking = 1;
3440                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3441                                 si->si_schemachecking = 0;
3442                         } else {
3443                                 si->si_schemachecking = 1;
3444                         }
3445                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3446                                         STRLENOF( FILTERSTR "=" ) ) )
3447                 {
3448                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3449                         if ( si->si_filterstr.bv_val )
3450                                 ch_free( si->si_filterstr.bv_val );
3451                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3452                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3453                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3454                 {
3455                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3456                         if ( si->si_logfilterstr.bv_val )
3457                                 ch_free( si->si_logfilterstr.bv_val );
3458                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3459                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3460                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3461                 {
3462                         struct berval   bv;
3463                         int             rc;
3464
3465                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3466                         if ( si->si_base.bv_val ) {
3467                                 ch_free( si->si_base.bv_val );
3468                         }
3469                         ber_str2bv( val, 0, 0, &bv );
3470                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3471                         if ( rc != LDAP_SUCCESS ) {
3472                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3473                                         "Invalid base DN \"%s\": %d (%s)",
3474                                         val, rc, ldap_err2string( rc ) );
3475                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3476                                 return -1;
3477                         }
3478                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3479                                 ch_free( si->si_base.bv_val );
3480                                 BER_BVZERO( &si->si_base );
3481                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3482                                         "Base DN \"%s\" is not within the database naming context",
3483                                         val );
3484                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3485                                 return -1;
3486                         }
3487                         gots |= GOT_BASE;
3488                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3489                                         STRLENOF( LOGBASESTR "=" ) ) )
3490                 {
3491                         struct berval   bv;
3492                         int             rc;
3493
3494                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3495                         if ( si->si_logbase.bv_val ) {
3496                                 ch_free( si->si_logbase.bv_val );
3497                         }
3498                         ber_str2bv( val, 0, 0, &bv );
3499                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3500                         if ( rc != LDAP_SUCCESS ) {
3501                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3502                                         "Invalid logbase DN \"%s\": %d (%s)",
3503                                         val, rc, ldap_err2string( rc ) );
3504                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3505                                 return -1;
3506                         }
3507                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3508                                         STRLENOF( SCOPESTR "=" ) ) )
3509                 {
3510                         int j;
3511                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3512                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3513                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3514                                         si->si_scope = scopes[j].val;
3515                                         break;
3516                                 }
3517                         }
3518                         if ( BER_BVISNULL(&scopes[j].key) ) {
3519                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3520                                         "Error: parse_syncrepl_line: "
3521                                         "unknown scope \"%s\"", val);
3522                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3523                                 return -1;
3524                         }
3525                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3526                                         STRLENOF( ATTRSONLYSTR ) ) )
3527                 {
3528                         si->si_attrsonly = 1;
3529                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3530                                         STRLENOF( ATTRSSTR "=" ) ) )
3531                 {
3532                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3533                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3534                                 char *attr_fname;
3535                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3536                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3537                                 if ( si->si_anlist == NULL ) {
3538                                         ch_free( attr_fname );
3539                                         return -1;
3540                                 }
3541                                 si->si_anfile = attr_fname;
3542                         } else {
3543                                 char *str, *s, *next;
3544                                 const char *delimstr = " ,\t";
3545                                 str = ch_strdup( val );
3546                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3547                                                 s != NULL;
3548                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3549                                 {
3550                                         if ( strlen(s) == 1 && *s == '*' ) {
3551                                                 si->si_allattrs = 1;
3552                                                 val[ s - str ] = delimstr[0];
3553                                         }
3554                                         if ( strlen(s) == 1 && *s == '+' ) {
3555                                                 si->si_allopattrs = 1;
3556                                                 val [ s - str ] = delimstr[0];
3557                                         }
3558                                 }
3559                                 ch_free( str );
3560                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3561                                 if ( si->si_anlist == NULL ) {
3562                                         return -1;
3563                                 }
3564                         }
3565                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3566                                         STRLENOF( EXATTRSSTR "=" ) ) )
3567                 {
3568                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3569                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3570                                 char *attr_fname;
3571                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3572                                 si->si_exanlist = file2anlist(
3573                                         si->si_exanlist, attr_fname, " ,\t" );
3574                                 if ( si->si_exanlist == NULL ) {
3575                                         ch_free( attr_fname );
3576                                         return -1;
3577                                 }
3578                                 ch_free( attr_fname );
3579                         } else {
3580                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3581                                 if ( si->si_exanlist == NULL ) {
3582                                         return -1;
3583                                 }
3584                         }
3585                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3586                                         STRLENOF( TYPESTR "=" ) ) )
3587                 {
3588                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3589                         if ( !strncasecmp( val, "refreshOnly",
3590                                                 STRLENOF("refreshOnly") ) )
3591                         {
3592                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3593                         } else if ( !strncasecmp( val, "refreshAndPersist",
3594                                                 STRLENOF("refreshAndPersist") ) )
3595                         {
3596                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3597                                 si->si_interval = 60;
3598                         } else {
3599                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3600                                         "Error: parse_syncrepl_line: "
3601                                         "unknown sync type \"%s\"", val);
3602                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3603                                 return -1;
3604                         }
3605                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3606                                         STRLENOF( INTERVALSTR "=" ) ) )
3607                 {
3608                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3609                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3610                                 si->si_interval = 0;
3611                         } else if ( strchr( val, ':' ) != NULL ) {
3612                                 char *next, *ptr = val;
3613                                 int dd, hh, mm, ss;
3614
3615                                 dd = strtol( ptr, &next, 10 );
3616                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3617                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3618                                                 "Error: parse_syncrepl_line: "
3619                                                 "invalid interval \"%s\", unable to parse days", val );
3620                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3621                                         return -1;
3622                                 }
3623                                 ptr = next + 1;
3624                                 hh = strtol( ptr, &next, 10 );
3625                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3626                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3627                                                 "Error: parse_syncrepl_line: "
3628                                                 "invalid interval \"%s\", unable to parse hours", val );
3629                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3630                                         return -1;
3631                                 }
3632                                 ptr = next + 1;
3633                                 mm = strtol( ptr, &next, 10 );
3634                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3635                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3636                                                 "Error: parse_syncrepl_line: "
3637                                                 "invalid interval \"%s\", unable to parse minutes", val );
3638                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3639                                         return -1;
3640                                 }
3641                                 ptr = next + 1;
3642                                 ss = strtol( ptr, &next, 10 );
3643                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3644                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3645                                                 "Error: parse_syncrepl_line: "
3646                                                 "invalid interval \"%s\", unable to parse seconds", val );
3647                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3648                                         return -1;
3649                                 }
3650                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3651                         } else {
3652                                 unsigned long   t;
3653
3654                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3655                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3656                                                 "Error: parse_syncrepl_line: "
3657                                                 "invalid interval \"%s\"", val );
3658                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3659                                         return -1;
3660                                 }
3661                                 si->si_interval = (time_t)t;
3662                         }
3663                         if ( si->si_interval < 0 ) {
3664                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3665                                         "Error: parse_syncrepl_line: "
3666                                         "invalid interval \"%ld\"",
3667                                         (long) si->si_interval);
3668                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3669                                 return -1;
3670                         }
3671                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3672                                         STRLENOF( RETRYSTR "=" ) ) )
3673                 {
3674                         char **retry_list;
3675                         int j, k, n;
3676
3677                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3678                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3679                         retry_list[0] = NULL;
3680
3681                         slap_str2clist( &retry_list, val, " ,\t" );
3682
3683                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3684                         n = k / 2;
3685                         if ( k % 2 ) {
3686                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3687                                         "Error: incomplete syncrepl retry list" );
3688                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3689                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3690                                         ch_free( retry_list[k] );
3691                                 }
3692                                 ch_free( retry_list );
3693                                 return 1;
3694                         }
3695                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3696                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3697                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3698                         for ( j = 0; j < n; j++ ) {
3699                                 unsigned long   t;
3700                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3701                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3702                                                 "Error: invalid retry interval \"%s\" (#%d)",
3703                                                 retry_list[j*2], j );
3704                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3705                                         /* do some cleanup */
3706                                         return 1;
3707                                 }
3708                                 si->si_retryinterval[j] = (time_t)t;
3709                                 if ( *retry_list[j*2+1] == '+' ) {
3710                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3711                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3712                                         j++;
3713                                         break;
3714                                 } else {
3715                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3716                                                         || si->si_retrynum_init[j] <= 0 )
3717                                         {
3718                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3719                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3720                                                         retry_list[j*2+1], j );
3721                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3722                                                 /* do some cleanup */
3723                                                 return 1;
3724                                         }
3725                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3726                                                         || si->si_retrynum[j] <= 0 )
3727                                         {
3728                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3729                                                         "Error: invalid retry number \"%s\" (#%d)",
3730                                                         retry_list[j*2+1], j );
3731                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3732                                                 /* do some cleanup */
3733                                                 return 1;
3734                                         }
3735                                 }
3736                         }
3737                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3738                         si->si_retrynum[j] = RETRYNUM_TAIL;
3739                         si->si_retryinterval[j] = 0;
3740
3741                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3742                                 ch_free( retry_list[k] );
3743                         }
3744                         ch_free( retry_list );
3745                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3746                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3747                 {
3748                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3749                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3750                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3751                         {
3752                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3753                                         "invalid manageDSAit value \"%s\".\n",
3754                                         val );
3755                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3756                                 return 1;
3757                         }
3758                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3759                                         STRLENOF( SLIMITSTR "=") ) )
3760                 {
3761                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3762                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3763                                 si->si_slimit = 0;
3764
3765                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3766                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3767                                         "invalid size limit value \"%s\".\n",
3768                                         val );
3769                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3770                                 return 1;
3771                         }
3772                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3773                                         STRLENOF( TLIMITSTR "=" ) ) )
3774                 {
3775                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3776                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3777                                 si->si_tlimit = 0;
3778
3779                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3780                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3781                                         "invalid time limit value \"%s\".\n",
3782                                         val );
3783                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3784                                 return 1;
3785                         }
3786                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3787                                         STRLENOF( SYNCDATASTR "=" ) ) )
3788                 {
3789                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3790                         si->si_syncdata = verb_to_mask( val, datamodes );
3791                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3792                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3793                                 "Error: parse_syncrepl_line: "
3794                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3795                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3796                         return -1;
3797                 }
3798         }
3799
3800         if ( gots != GOT_ALL ) {
3801                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3802                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3803                         gots & GOT_ID ? "" : " "IDSTR,
3804                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3805                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3806                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3807                 return -1;
3808         }
3809
3810         return 0;
3811 }
3812
3813 static int
3814 add_syncrepl(
3815         ConfigArgs *c )
3816 {
3817         syncinfo_t *si;
3818         int     rc = 0;
3819
3820         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3821                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3822                         "operations required for syncrepl", c->be->be_type );
3823                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3824                 return 1;
3825         }
3826         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3827                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3828                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3829                 return 1;
3830         }
3831         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3832
3833         if ( si == NULL ) {
3834                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3835                 return 1;
3836         }
3837
3838         si->si_bindconf.sb_tls = SB_TLS_OFF;
3839         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3840         si->si_schemachecking = 0;
3841         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3842                 &si->si_filterstr );
3843         si->si_base.bv_val = NULL;
3844         si->si_scope = LDAP_SCOPE_SUBTREE;
3845         si->si_attrsonly = 0;
3846         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3847         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3848         si->si_attrs = NULL;
3849         si->si_allattrs = 0;
3850         si->si_allopattrs = 0;
3851         si->si_exattrs = NULL;
3852         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3853         si->si_interval = 86400;
3854         si->si_retryinterval = NULL;
3855         si->si_retrynum_init = NULL;
3856         si->si_retrynum = NULL;
3857         si->si_manageDSAit = 0;
3858         si->si_tlimit = 0;
3859         si->si_slimit = 0;
3860
3861         si->si_presentlist = NULL;
3862         LDAP_LIST_INIT( &si->si_nonpresentlist );
3863         ldap_pvt_thread_mutex_init( &si->si_mutex );
3864
3865         rc = parse_syncrepl_line( c, si );
3866
3867         if ( rc == 0 ) {
3868                 /* Must be LDAPv3 because we need controls */
3869                 switch ( si->si_bindconf.sb_version ) {
3870                 case 0:
3871                         /* not explicitly set */
3872                         si->si_bindconf.sb_version = LDAP_VERSION3;
3873                         break;
3874                 case 3:
3875                         /* explicitly set */
3876                         break;
3877                 default:
3878                         Debug( LDAP_DEBUG_ANY,
3879                                 "version %d incompatible with syncrepl\n",
3880                                 si->si_bindconf.sb_version, 0, 0 );
3881                         syncinfo_free( si, 0 );
3882                         return 1;
3883                 }
3884
3885                 si->si_be = c->be;
3886                 if ( slapMode & SLAP_SERVER_MODE ) {
3887                         Listener **l = slapd_get_listeners();
3888                         int isMe = 0;
3889
3890                         /* check if URL points to current server. If so, ignore
3891                          * this configuration. We require an exact match. Just
3892                          * in case they really want to do this, they can vary
3893                          * the case of the URL to allow it.
3894                          */
3895                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3896                                 int i;
3897                                 for ( i=0; l[i]; i++ ) {
3898                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3899                                                 isMe = 1;
3900                                                 break;
3901                                         }
3902                                 }
3903                         }
3904
3905                         if ( !isMe ) {
3906                                 init_syncrepl( si );
3907                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3908                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3909                                         si->si_ridtxt );
3910                                 if ( si->si_re )
3911                                         rc = config_sync_shadow( c ) ? -1 : 0;
3912                                 else
3913                                         rc = -1;
3914                         }
3915                 } else {
3916                         /* mirrormode still needs to see this flag in tool mode */
3917                         rc = config_sync_shadow( c ) ? -1 : 0;
3918                 }
3919         }
3920
3921 #ifdef HAVE_TLS
3922         /* Use main slapd defaults */
3923         bindconf_tls_defaults( &si->si_bindconf );
3924 #endif
3925         if ( rc < 0 ) {
3926                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3927                 syncinfo_free( si, 0 );
3928                 return 1;
3929         } else {
3930                 Debug( LDAP_DEBUG_CONFIG,
3931                         "Config: ** successfully added syncrepl \"%s\"\n",
3932                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3933                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3934                 if ( !si->si_schemachecking ) {
3935                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3936                 }
3937                 if ( c->be->be_syncinfo ) {
3938                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3939                 } else {
3940                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3941                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3942                 }
3943                 si->si_next = c->be->be_syncinfo;
3944                 c->be->be_syncinfo = si;
3945                 return 0;
3946         }
3947 }
3948
3949 static void
3950 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3951 {
3952         struct berval bc, uri;
3953         char buf[BUFSIZ*2], *ptr;
3954         int i;
3955
3956 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3957
3958         BER_BVZERO( bv );
3959
3960         /* temporarily inhibit bindconf from printing URI */
3961         uri = si->si_bindconf.sb_uri;
3962         BER_BVZERO( &si->si_bindconf.sb_uri );
3963         si->si_bindconf.sb_version = 0;
3964         bindconf_unparse( &si->si_bindconf, &bc );
3965         si->si_bindconf.sb_uri = uri;
3966         si->si_bindconf.sb_version = LDAP_VERSION3;
3967
3968         ptr = buf;
3969         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
3970         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
3971                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3972         if ( ptr - buf >= sizeof( buf ) ) return;
3973         if ( !BER_BVISNULL( &bc ) ) {
3974                 if ( WHATSLEFT <= bc.bv_len ) {
3975                         free( bc.bv_val );
3976                         return;
3977                 }
3978                 ptr = lutil_strcopy( ptr, bc.bv_val );
3979                 free( bc.bv_val );
3980         }
3981         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3982                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3983                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3984                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3985                 *ptr++ = '"';
3986         }
3987         if ( !BER_BVISNULL( &si->si_base ) ) {
3988                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3989                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3990                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3991                 *ptr++ = '"';
3992         }
3993         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3994                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3995                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3996                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3997                 *ptr++ = '"';
3998         }
3999         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4000                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4001                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4002                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4003                 *ptr++ = '"';
4004         }
4005         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4006                 if ( si->si_scope == scopes[i].val ) {
4007                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4008                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4009                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4010                         break;
4011                 }
4012         }
4013         if ( si->si_attrsonly ) {
4014                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4015                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4016         }
4017         if ( si->si_anfile ) {
4018                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4019                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4020                 ptr = lutil_strcopy( ptr, si->si_anfile );
4021                 *ptr++ = '"';
4022         } else if ( si->si_allattrs || si->si_allopattrs ||
4023                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4024         {
4025                 char *old;
4026
4027                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4028                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4029                 old = ptr;
4030                 /* FIXME: add check for overflow */
4031                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4032                 if ( si->si_allattrs ) {
4033                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4034                         if ( old != ptr ) *ptr++ = ',';
4035                         *ptr++ = '*';
4036                 }
4037                 if ( si->si_allopattrs ) {
4038                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4039                         if ( old != ptr ) *ptr++ = ',';
4040                         *ptr++ = '+';
4041                 }
4042                 *ptr++ = '"';
4043         }
4044         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4045                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4046                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4047                 /* FIXME: add check for overflow */
4048                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4049         }
4050         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4051         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4052         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4053
4054         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4055         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4056         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4057                 "refreshAndPersist" : "refreshOnly" );
4058
4059         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4060                 int dd, hh, mm, ss;
4061
4062                 dd = si->si_interval;
4063                 ss = dd % 60;
4064                 dd /= 60;
4065                 mm = dd % 60;
4066                 dd /= 60;
4067                 hh = dd % 24;
4068                 dd /= 24;
4069                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4070                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4071                 if ( ptr - buf >= sizeof( buf ) ) return;
4072         } else if ( si->si_retryinterval ) {
4073                 int space=0;
4074                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4075                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4076                 for (i=0; si->si_retryinterval[i]; i++) {
4077                         if ( space ) *ptr++ = ' ';
4078                         space = 1;
4079                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4080                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4081                                 *ptr++ = '+';
4082                         else
4083                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4084                 }
4085                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4086                 *ptr++ = '"';
4087         }
4088
4089         if ( si->si_slimit ) {
4090                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4091                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4092                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4093         }
4094
4095         if ( si->si_tlimit ) {
4096                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4097                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4098                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4099         }
4100
4101         if ( si->si_syncdata ) {
4102                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4103                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4104                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4105                         ptr = lutil_strcopy( ptr, bc.bv_val );
4106                 }
4107         }
4108         bc.bv_len = ptr - buf;
4109         bc.bv_val = buf;
4110         ber_dupbv( bv, &bc );
4111 }
4112
4113 int
4114 syncrepl_config( ConfigArgs *c )
4115 {
4116         if (c->op == SLAP_CONFIG_EMIT) {
4117                 if ( c->be->be_syncinfo ) {
4118                         struct berval bv;
4119                         syncinfo_t *si;
4120
4121                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4122                                 syncrepl_unparse( si, &bv );
4123                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4124                         }
4125                         return 0;
4126                 }
4127                 return 1;
4128         } else if ( c->op == LDAP_MOD_DELETE ) {
4129                 cookie_state *cs = NULL;
4130                 if ( c->be->be_syncinfo ) {
4131                         syncinfo_t *si, **sip;
4132                         int i;
4133
4134                         cs = c->be->be_syncinfo->si_cookieState;
4135                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4136                                 si = *sip;
4137                                 if ( c->valx == -1 || i == c->valx ) {
4138                                         *sip = si->si_next;
4139                                         /* If the task is currently active, we have to leave
4140                                          * it running. It will exit on its own. This will only
4141                                          * happen when running on the cn=config DB.
4142                                          */
4143                                         if ( si->si_re &&
4144                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
4145                                                 si->si_ctype = 0;
4146                                         } else {
4147                                                 syncinfo_free( si, 0 );
4148                                         }
4149                                         if ( i == c->valx )
4150                                                 break;
4151                                 } else {
4152                                         sip = &si->si_next;
4153                                 }
4154                         }
4155                 }
4156                 if ( !c->be->be_syncinfo ) {
4157                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4158                         if ( cs ) {
4159                                 ber_bvarray_free( cs->cs_vals );
4160                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4161                                 ch_free( cs );
4162                         }
4163                 }
4164                 return 0;
4165         }
4166         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4167                 Debug(LDAP_DEBUG_ANY, "%s: "
4168                         "syncrepl: database already shadowed.\n",
4169                         c->log, 0, 0);
4170                 return(1);
4171         } else {
4172                 return add_syncrepl( c );
4173         }
4174 }